rirtracker

Daily reports · ← 2026-09-20 · 2026-09-22 →

Report for 2026-09-21

Source

Message
[arin-issued] Daily Report for 2026-09-21
Sent
Mon, 21 Sep 2026 23:30:12 -0400 (EDT)
Retrieved
, stored unchanged
SHA-256
ce5c518590a31db2efbf509a1f26024f487adb0a423d2ca3615f9c4d9eec61f5

Counts

Add
6
Not in ARIN-Issued
38
Confirmed
1
Strong inference
43
Observed only
0
Conflicting
0

What happened

Removed
38
Apparent reissuance
3
Apparent new issuance
2
Transfer into ARIN
1

On the report (6)

2026-09-21 2602:f2df::/40 + Add Apparent new issuance Strong inference
ARIN-Issued
Add 2602:F2DF::-2602:F2DF:FF:FFFF:FFFF:FFFF:FFFF:FFFF
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2026-09-20 and allocated (dated 2026-09-21) on 2026-09-22. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.

Evidence (3) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-09-21: "Add 2602:F2DF::-2602:F2DF:FF:FFFF:FFFF:FFFF:FFFF:FFFF" source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: allocated (dated 2026-09-21) source · retrieved
2026-09-21 2602:f2e0::/40 + Add Apparent new issuance Strong inference
ARIN-Issued
Add 2602:F2E0::-2602:F2E0:FF:FFFF:FFFF:FFFF:FFFF:FFFF
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2026-09-20 and allocated (dated 2026-09-21) on 2026-09-22. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.

Evidence (3) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-09-21: "Add 2602:F2E0::-2602:F2E0:FF:FFFF:FFFF:FFFF:FFFF:FFFF" source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: allocated (dated 2026-09-21) source · retrieved
2026-09-21 80.46.160.0/19 + Add Inter-RIR transfer into ARIN Confirmed
ARIN-Issued
Add 80.46.160.0-80.46.191.255
From
TalkTalk Communications Limited RIPE NCC
To
San Francisco Compute Company ARIN
Inventory
Transferred into ARIN administration; not a new issuance

ARIN's transfer log records a transfer from TalkTalk Communications Limited (RIPE NCC) to San Francisco Compute Company (ARIN) on 2026-09-21 13:59 UTC: it came to ARIN from RIPE NCC. It was already issued by another registry, so this is not a new issuance.

Evidence (4) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-09-21: "Add 80.46.160.0-80.46.191.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2026-09-21 13:59 UTC, TalkTalk Communications Limited (RIPE NCC) to San Francisco Compute Company (ARIN); resources moved: 80.46.160.0/19 source · retrieved
  3. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: not listed source · retrieved
  4. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: allocated (dated 2026-09-21) source · retrieved
2026-09-21 AS400978 + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add AS400978
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2026-09-20 and assigned (dated 2026-09-21) on 2026-09-22. The tracker saw this range released from hold on 2026-09-08 (AS400978), so it appears to have been issued again from ARIN's pool.

Evidence (3) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-09-21: "Add AS400978" source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: assigned (dated 2026-09-21) source · retrieved
2026-09-21 AS401016 + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add AS401016
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2026-09-20 and assigned (dated 2026-09-21) on 2026-09-22. The tracker saw this range released from hold on 2026-09-08 (AS401016), so it appears to have been issued again from ARIN's pool.

Evidence (3) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-09-21: "Add AS401016" source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: assigned (dated 2026-09-21) source · retrieved
2026-09-21 AS401066 + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add AS401066
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2026-09-20 and assigned (dated 2026-09-21) on 2026-09-22. The tracker saw this range released from hold on 2026-09-08 (AS401066), so it appears to have been issued again from ARIN's pool.

Evidence (3) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-09-21: "Add AS401066" source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: assigned (dated 2026-09-21) source · retrieved

Not on the report, found in ARIN's statistics (38)

2026-09-21 AS4194 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2027-03-21. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 1994-12-16) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2027-03-21. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS4194 assigned on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: assigned (dated 1994-12-16) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 47.136.0.0/13 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-08-28) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 47.136.0.0/13 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2015-08-28) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 47.144.0.0/12 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-08-28) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 47.144.0.0/12 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2015-08-28) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 47.160.0.0/12 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-08-28) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 47.160.0.0/12 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2015-08-28) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 47.176.0.0/14 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-08-28) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 47.176.0.0/14 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2015-08-28) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 47.180.0.0/15 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-08-28) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 47.180.0.0/15 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2015-08-28) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 65.104.0.0/14 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2001-01-30) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 65.104.0.0/14 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2001-01-30) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 68.236.0.0/16 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2003-07-18) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 68.236.0.0/16 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2003-07-18) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 68.237.0.0/17 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2003-07-18) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 68.237.0.0/17 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2003-07-18) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 98.108.0.0/14 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2008-04-02) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 98.108.0.0/14 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2008-04-02) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 98.112.0.0/13 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2008-04-02) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 98.112.0.0/13 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2008-04-02) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 100.32.0.0/13 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2010-12-28) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 100.32.0.0/13 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2010-12-28) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 100.40.0.0/15 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2010-12-28) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 100.40.0.0/15 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2010-12-28) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 136.151.0.0/16 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1991-03-06) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 136.151.0.0/16 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1991-03-06) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 152.164.0.0/16 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1992-04-01) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 152.164.0.0/16 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1992-04-01) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 166.101.0.0/16 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1993-11-30) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 166.101.0.0/16 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1993-11-30) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 166.237.0.0/16 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2025-03-25) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 166.237.0.0/16 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2025-03-25) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 172.76.0.0/14 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-04-02) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 172.76.0.0/14 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2015-04-02) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 192.48.96.0/24 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1989-02-01) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 192.48.96.0/24 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1989-02-01) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 192.91.181.0/24 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1991-01-17) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 192.91.181.0/24 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1991-01-17) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 192.182.0.0/17 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2012-10-22) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 192.182.0.0/17 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2012-10-22) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 192.183.224.0/19 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2012-10-22) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 192.183.224.0/19 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2012-10-22) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 198.133.99.0/24 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1993-04-12) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 198.133.99.0/24 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1993-04-12) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 198.133.100.0/22 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1993-04-12) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 198.133.100.0/22 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1993-04-12) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 198.133.104.0/22 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1993-04-12) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 198.133.104.0/22 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1993-04-12) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 198.133.108.0/24 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1993-04-12) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 198.133.108.0/24 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1993-04-12) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 198.136.151.0/24 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1993-06-01) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 198.136.151.0/24 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1993-06-01) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 198.187.32.0/19 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1993-09-20) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 198.187.32.0/19 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1993-09-20) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 198.190.0.0/21 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1993-06-11) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 198.190.0.0/21 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1993-06-11) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 198.246.158.0/24 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1994-07-19) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 198.246.158.0/24 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1994-07-19) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 199.244.167.0/24 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1994-08-19) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 199.244.167.0/24 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1994-08-19) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 204.128.203.0/24 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1995-02-15) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 204.128.203.0/24 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1995-02-15) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 207.8.0.0/17 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1995-12-12) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 207.8.0.0/17 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1995-12-12) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 209.4.0.0/16 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1996-12-17) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 209.4.0.0/16 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1996-12-17) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 209.251.160.0/19 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1998-07-31) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 209.251.160.0/19 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1998-07-31) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 216.30.0.0/17 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1998-07-22) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 216.30.0.0/17 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1998-07-22) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 216.30.128.0/20 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-11-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 1998-07-22) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 for 60 days before reissuing them, so the earliest estimated hold expiration is 2026-11-20. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 216.30.128.0/20 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 1998-07-22) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved
2026-09-21 2620:122:8000::/44 Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2027-03-21. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2015-09-17) on 2026-09-20 and reserved on 2026-09-22. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv6 for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2027-03-21. This does not confirm availability.

Evidence (3) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 2620:122:8000::/44 allocated on 2026-09-21, reserved on 2026-09-22 source · retrieved
  2. Before ARIN delegated statistics 2026-09-20 (produced 2026-09-20T13:00:21+00:00), before the report: allocated (dated 2015-09-17) source · retrieved
  3. After ARIN delegated statistics 2026-09-22 (produced 2026-09-22T13:00:21+00:00), after the report: reserved source · retrieved