rirtracker

ASN

AS10261

This network elsewhere: its routes on BGP Report

Now

ARIN statistics
Assigned (dated 2023-07-05) (CA), in the latest file
Registry
ARIN
Holder
B3zdna Systems Inc.
From
ARIN's latest statistics and the latest transfer record

Latest change

Transfer log Merger/acquisition or reorganization

Reported
2025-11-14 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN applicant inventory

Timeline (8)

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.

2025-11-14 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: B3ZDNA (ARIN) to B3zdna Systems Inc. (ARIN)
From
B3ZDNA ARIN
To
B3zdna Systems Inc. ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from B3ZDNA (ARIN) to B3zdna Systems Inc. (ARIN) on 2025-11-14 20:23 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.

Evidence (3) · classifier 1.4.0,
  1. Transfer log Transfer log: MERGER_ACQUISITION on 2025-11-14 20:23 UTC, B3ZDNA (ARIN) to B3zdna Systems Inc. (ARIN); resources moved: AS10261 source · retrieved
  2. Before ARIN delegated statistics 2025-11-13 (produced 2025-11-13T14:00:46+00:00), before the report: assigned (dated 2023-07-05) source · retrieved
  3. After ARIN delegated statistics 2025-11-15 (produced 2025-11-15T14:00:50+00:00), after the report: assigned (dated 2023-07-05) source · retrieved
2023-07-05 ARIN + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add AS10261
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2023-07-04 and assigned (dated 2023-07-05) on 2023-07-06. The tracker saw this range released from hold on 2023-06-29 (AS10261), 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 2023-07-05: "Add AS10261" source · retrieved
  2. Before ARIN delegated statistics 2023-07-04 (produced 2023-07-04T13:00:10+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2023-07-06 (produced 2023-07-06T13:00:11+00:00), after the report: assigned (dated 2023-07-05) 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
2023-06-29 ARIN − Remove Released from hold (ARIN lists it as 'available') Strong inference
ARIN-Issued
Remove AS10261
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed

ARIN's statistics show it reserved on 2023-06-28 and available on 2023-06-30. 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 2022-01-10, 535 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 2023-06-29: "Remove AS10261" source · retrieved
  2. Before ARIN delegated statistics 2023-06-28 (produced 2023-06-28T13:00:11+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2023-06-30 (produced 2023-06-30T13:00:11+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
2022-01-10 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 2022-07-10. 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 2017-08-04) on 2022-01-09 and reserved on 2022-01-11. 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 2022-07-10. 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: AS10261 assigned on 2022-01-10, reserved on 2022-01-11 source · retrieved
  2. Before ARIN delegated statistics 2022-01-09 (produced 2022-01-09T14:00:13+00:00), before the report: assigned (dated 2017-08-04) source · retrieved
  3. After ARIN delegated statistics 2022-01-11 (produced 2022-01-11T14:00:12+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
2017-08-04 ARIN + Add Apparent reissuance of previously removed resource Observed only
ARIN-Issued
Add AS10261
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it reserved on 2017-08-03 and assigned (dated 2017-08-04) on 2017-08-05. The tracker saw this range released from hold on 2017-08-03 (AS10261), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2017-08-03: Remove AS10261), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2017-08-04: "Add AS10261" source · retrieved
  2. Before ARIN delegated statistics 2017-08-03 (produced 2017-08-03T05:10:16+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2017-08-05 (produced 2017-08-05T05:10:32+00:00), after the report: assigned (dated 2017-08-04) 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
2017-08-03 ARIN − Remove Released from hold (ARIN lists it as 'available') Observed only
ARIN-Issued
Remove AS10261
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed

ARIN's statistics show it reserved on 2017-08-02 and available on 2017-08-04. 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 2017-03-07, 149 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 (2017-08-04: Add AS10261), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2017-08-03: "Remove AS10261" source · retrieved
  2. Before ARIN delegated statistics 2017-08-02 (produced 2017-08-02T05:11:14+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2017-08-04 (produced 2017-08-04T05:10:36+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
2017-03-07 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 2017-09-07. 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 2014-10-08) on 2017-03-06 and reserved on 2017-03-08. 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 2017-09-07. 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: AS10261 assigned on 2017-03-07, reserved on 2017-03-08 source · retrieved
  2. Before ARIN delegated statistics 2017-03-06 (produced 2017-03-06T06:10:28+00:00), before the report: assigned (dated 2014-10-08) source · retrieved
  3. After ARIN delegated statistics 2017-03-08 (produced 2017-03-08T06:10:20+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
2014-08-05 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 2015-02-05. 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 2008-03-27) on 2014-08-04 and reserved on 2014-08-06. 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 2015-02-05. 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: AS10261 assigned on 2014-08-05, reserved on 2014-08-06 source · retrieved
  2. Before ARIN delegated statistics 2014-08-04 (produced 2014-08-04T05:04:41+00:00), before the report: assigned (dated 2008-03-27) source · retrieved
  3. After ARIN delegated statistics 2014-08-06 (produced 2014-08-06T05:04:56+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

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisitionAS10261 B3ZDNA ARINB3zdna Systems Inc. ARIN

Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this ASN (ARIN's from 2009, the RIPE NCC's from 2012, APNIC's from 2010, LACNIC's from 2016, AFRINIC's from 2018). A transfer between two registries is in both logs.

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/10261.json