rirtracker

ASN

AS10931

Now

ARIN statistics
Assigned (dated 2025-10-15) (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
2025-10-15 (ARIN)
Confidence
Observed only
Inventory
Likely issued from ARIN-controlled inventory

Timeline (3)

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.

2025-10-15 ARIN + Add Apparent reissuance of previously removed resource Observed only
ARIN-Issued
Add AS10931
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2025-10-14 and assigned (dated 2025-10-15) on 2025-10-16. The tracker saw this range released from hold on 2025-10-14 (AS10931), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2025-10-14: Remove AS10931), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-10-15: "Add AS10931" source · retrieved
  2. Before ARIN delegated statistics 2025-10-14 (produced 2025-10-14T13:00:47+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2025-10-16 (produced 2025-10-16T13:00:46+00:00), after the report: assigned (dated 2025-10-15) 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 reissuance of previously removed resource, observed only (classifier 1.4.0) current
2025-10-14 ARIN − Remove Released from hold (ARIN lists it as 'available') Observed only
ARIN-Issued
Remove AS10931
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 2013-01-16, 4654 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2025-10-15: Add AS10931), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-10-14: "Remove AS10931" 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'), observed only (classifier 1.3.0)
  2. : Released from hold (ARIN lists it as 'available'), observed only (classifier 1.3.1)
  3. : Released from hold (ARIN lists it as 'available'), observed only (classifier 1.3.2)
  4. : Released from hold (ARIN lists it as 'available'), observed only (classifier 1.4.0) current
2013-01-16 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 2013-07-16. 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 2005-04-18) on 2013-01-15 and not issued on 2013-01-17. (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 2013-07-16. 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: AS10931 allocated on 2013-01-16, not listed on 2013-01-17 source · retrieved
  2. Before ARIN delegated statistics 2013-01-15, before the report: allocated (dated 2005-04-18) source · retrieved
  3. After ARIN delegated statistics 2013-01-17, 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/10931.json