rirtracker

ASN

AS15312

This network elsewhere: its routes on BGP Report

Now

ARIN statistics
Assigned (dated 2025-10-21) (US), in the latest file
Registry
ARIN
Holder
Not looked up
From
ARIN's latest statistics

Latest change

+ Add Apparent reissuance of previously removed resource

Reported
2025-10-21 (ARIN)
Confidence
Strong inference
Inventory
Likely issued from ARIN-controlled inventory

Timeline (7)

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.

2025-10-21 ARIN + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add AS15312
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2025-10-20 and assigned (dated 2025-10-21) on 2025-10-22. The tracker saw this range released from hold on 2025-10-14 (AS15312), so it appears to have been issued again from ARIN's pool.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-10-21: "Add AS15312" source · retrieved
  2. Before ARIN delegated statistics 2025-10-20 (produced 2025-10-20T13:00:47+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2025-10-22 (produced 2025-10-22T13:00:46+00:00), after the report: assigned (dated 2025-10-21) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.0)
  2. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.1)
  3. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.2)
  4. : Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2025-10-14 ARIN − Remove Released from hold (ARIN lists it as 'available') Strong inference
ARIN-Issued
Remove AS15312
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed

ARIN's statistics show it reserved on 2025-10-13 and available on 2025-10-15. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2025-01-06, 281 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-10-14: "Remove AS15312" source · retrieved
  2. Before ARIN delegated statistics 2025-10-13 (produced 2025-10-13T13:00:46+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2025-10-15 (produced 2025-10-15T13:00:47+00:00), after the report: available source · retrieved
Classification history for this change (4 versions)
  1. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.0)
  2. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.1)
  3. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.2)
  4. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.4.0) current
2025-01-06 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 2025-07-06. 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 assigned (dated 2020-08-03) on 2025-01-05 and reserved on 2025-01-07. 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 estimated hold end is 2025-07-06. This does not confirm availability. Since mid-2024, ARIN has released many ASNs within two months, before the 6 calendar months were up, so the release can come sooner.

Evidence (3) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS15312 assigned on 2025-01-06, reserved on 2025-01-07 source · retrieved
  2. Before ARIN delegated statistics 2025-01-05 (produced 2025-01-05T14:01:06+00:00), before the report: assigned (dated 2020-08-03) source · retrieved
  3. After ARIN delegated statistics 2025-01-07 (produced 2025-01-07T14:01:08+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
2020-08-03 ARIN + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add AS15312
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2020-08-02 and assigned (dated 2020-08-03) on 2020-08-04. The tracker saw this range released from hold on 2020-07-16 (AS15312), so it appears to have been issued again from ARIN's pool.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2020-08-03: "Add AS15312" source · retrieved
  2. Before ARIN delegated statistics 2020-08-02 (produced 2020-08-02T14:00:12+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2020-08-04 (produced 2020-08-04T14:00:12+00:00), after the report: assigned (dated 2020-08-03) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.0)
  2. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.1)
  3. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.2)
  4. : Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2020-07-16 ARIN − Remove Released from hold (ARIN lists it as 'available') Strong inference
ARIN-Issued
Remove AS15312
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed

ARIN's statistics show it reserved on 2020-07-15 and available on 2020-07-17. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2019-02-05, 527 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2020-07-16: "Remove AS15312" source · retrieved
  2. Before ARIN delegated statistics 2020-07-15 (produced 2020-07-15T14:00:13+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2020-07-17 (produced 2020-07-17T14:00:13+00:00), after the report: available source · retrieved
Classification history for this change (4 versions)
  1. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.0)
  2. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.1)
  3. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.2)
  4. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.4.0) current
2019-02-05 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 2019-08-05. 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 2010-09-07) on 2019-02-04 and reserved on 2019-02-06. 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 estimated hold end is 2019-08-05. 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: AS15312 assigned on 2019-02-05, reserved on 2019-02-06 source · retrieved
  2. Before ARIN delegated statistics 2019-02-04 (produced 2019-02-04T06:00:17+00:00), before the report: assigned (dated 2010-09-07) source · retrieved
  3. After ARIN delegated statistics 2019-02-06 (produced 2019-02-06T06:00:16+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
2009-09-03 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 2010-03-03. 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 2006-10-31) on 2009-09-02 and not issued on 2009-09-04. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 estimated hold end is 2010-03-03. 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: AS15312 allocated on 2009-09-03, not listed on 2009-09-04 source · retrieved
  2. Before ARIN delegated statistics 2009-09-02, before the report: allocated (dated 2006-10-31) source · retrieved
  3. After ARIN delegated statistics 2009-09-04, after the report: not issued 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

Transfer records

No transfer log has a transfer of any part of this ASN.

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: asn/15312.json