rirtracker

IPv4 range · 256 addresses

192.101.72.0/24

Now

ARIN statistics
Allocated (dated 2025-02-04) (US), in the latest file
Registry
ARIN
Holder
Not looked up
From
ARIN's latest statistics

Latest change

+ Add Restored to the same holder

Reported
2025-02-04 (ARIN)
Confidence
Strong inference
Inventory
No effect on ARIN applicant inventory

Timeline (6)

Every change the tracker has found, newest first. It covers ARIN from 2008-12-01, the RIPE NCC from 2010-04-23, APNIC from 2008-02-15, LACNIC from 2012-06-29 and AFRINIC from 2012-10-03.

2025-02-04 ARIN + Add Restored to the same holder Strong inference
ARIN-Issued
Add 192.101.72.0-192.101.72.255
Inventory
No effect on ARIN applicant inventory

No transfer record matches. ARIN's statistics show it reserved on 2025-02-03 and allocated (dated 2025-02-04) on 2025-02-05. The tracker saw it removed from registration on 2024-10-07 (120 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-02-04: "Add 192.101.72.0-192.101.72.255" source · retrieved
  2. Before ARIN delegated statistics 2025-02-03 (produced 2025-02-03T14:01:07+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2025-02-05 (produced 2025-02-05T14:01:05+00:00), after the report: allocated (dated 2025-02-04) source · retrieved
Classification history for this change (4 versions)
  1. : Restored to the same holder, strong inference (classifier 1.3.0)
  2. : Restored to the same holder, strong inference (classifier 1.3.1)
  3. : Restored to the same holder, strong inference (classifier 1.3.2)
  4. : Restored to the same holder, strong inference (classifier 1.4.0) current
2025-02-04 ARIN − Remove Change to ARIN's own pool record Strong inference
ARIN-Issued
Remove 192.101.72.0-192.101.72.255
Inventory
Part of the issuance reported the same day

ARIN's statistics show it reserved on 2025-02-03 and allocated (dated 2025-02-04) on 2025-02-05. ARIN removed its own pool record for this range as part of issuing it: the same report adds 192.101.72.0-192.101.72.255. The issuance is explained on that line.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-02-04: "Remove 192.101.72.0-192.101.72.255" source · retrieved
  2. Before ARIN delegated statistics 2025-02-03 (produced 2025-02-03T14:01:07+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2025-02-05 (produced 2025-02-05T14:01:05+00:00), after the report: allocated (dated 2025-02-04) source · retrieved
Classification history for this change (4 versions)
  1. : Change to ARIN's own pool record, strong inference (classifier 1.3.0)
  2. : Change to ARIN's own pool record, strong inference (classifier 1.3.1)
  3. : Change to ARIN's own pool record, strong inference (classifier 1.3.2)
  4. : Change to ARIN's own pool record, strong inference (classifier 1.4.0) current
2024-10-07 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2024-12-06. 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 2018-09-21) on 2024-10-06 and reserved on 2024-10-08. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2024-12-06. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 192.101.72.0/24 allocated on 2024-10-07, reserved on 2024-10-08 source · retrieved
  2. Before ARIN delegated statistics 2024-10-06 (produced 2024-10-06T13:00:52+00:00), before the report: allocated (dated 2018-09-21) source · retrieved
  3. After ARIN delegated statistics 2024-10-08 (produced 2024-10-08T13:00:52+00:00), after the report: reserved source · retrieved
Classification history for this change (4 versions)
  1. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
  2. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
  3. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
  4. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.4.0) current
2018-09-21 ARIN + Add Apparent new issuance Observed only
ARIN-Issued
Add 192.101.72.0-192.101.72.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it reserved on 2018-09-20 and assigned (dated 2018-09-21) on 2018-09-22. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN. Another change to this range was reported the day before or after (2018-09-20: Remove 192.101.72.0-192.101.72.255), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2018-09-21: "Add 192.101.72.0-192.101.72.255" source · retrieved
  2. Before ARIN delegated statistics 2018-09-20 (produced 2018-09-20T05:00:15+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2018-09-22 (produced 2018-09-22T05:00:15+00:00), after the report: assigned (dated 2018-09-21) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent reissuance of previously removed resource, observed only (classifier 1.3.0)
  2. : Apparent reissuance of previously removed resource, observed only (classifier 1.3.1)
  3. : Apparent reissuance of previously removed resource, observed only (classifier 1.3.2)
  4. : Apparent new issuance, observed only (classifier 1.4.0) current
2018-09-21 ARIN − Remove Change to ARIN's own pool record Observed only
ARIN-Issued
Remove 192.101.72.0-192.101.72.255
Inventory
Part of the issuance reported the same day

ARIN's statistics show it reserved on 2018-09-20 and assigned (dated 2018-09-21) on 2018-09-22. ARIN removed its own pool record for this range as part of issuing it: the same report adds 192.101.72.0-192.101.72.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2018-09-20: Remove 192.101.72.0-192.101.72.255), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2018-09-21: "Remove 192.101.72.0-192.101.72.255" source · retrieved
  2. Before ARIN delegated statistics 2018-09-20 (produced 2018-09-20T05:00:15+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2018-09-22 (produced 2018-09-22T05:00:15+00:00), after the report: assigned (dated 2018-09-21) source · retrieved
Classification history for this change (4 versions)
  1. : Change to ARIN's own pool record, observed only (classifier 1.3.0)
  2. : Change to ARIN's own pool record, observed only (classifier 1.3.1)
  3. : Change to ARIN's own pool record, observed only (classifier 1.3.2)
  4. : Change to ARIN's own pool record, observed only (classifier 1.4.0) current
2018-09-20 ARIN − Remove No substantive resource change found Observed only
ARIN-Issued
Remove 192.101.72.0-192.101.72.255
Inventory
No effect on ARIN applicant inventory

ARIN-Issued lists it as "Remove", but ARIN's statistics show the same record before and after (reserved). Another change to this range was reported the day before or after (2018-09-21: Remove 192.101.72.0-192.101.72.255; 2018-09-21: Add 192.101.72.0-192.101.72.255), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2018-09-20: "Remove 192.101.72.0-192.101.72.255" source · retrieved
  2. Before ARIN delegated statistics 2018-09-19 (produced 2018-09-19T05:00:17+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2018-09-21 (produced 2018-09-21T05:00:16+00:00), after the report: reserved source · retrieved
Classification history for this change (4 versions)
  1. : No substantive resource change found, observed only (classifier 1.3.0)
  2. : No substantive resource change found, observed only (classifier 1.3.1)
  3. : No substantive resource change found, observed only (classifier 1.3.2)
  4. : No substantive resource change found, observed only (classifier 1.4.0) current

Transfer records

No transfer log has a transfer of any part of this IPv4 range.

RDAP lookups

Not looked up. The tracker queries RDAP for changes as they're reported (on first sight, after 24 hours and after seven days); older changes aren't looked up because today's RDAP says nothing about the past.

This page as data: ip/192.101.72.0-192.101.72.255.json