rirtracker

IPv4 range · 256 addresses

204.137.12.0/24

Now

ARIN statistics
Allocated (dated 2024-04-03) (US), in the latest file
Registry
ARIN
Holder
AP GP Operations, LLC
From
ARIN's latest statistics and the latest transfer record

Latest change

+ Add Apparent reissuance of previously removed resource

Reported
2024-04-03 (ARIN)
Confidence
Observed only
Inventory
Likely issued from ARIN-controlled 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.

2024-04-03 ARIN + Add Apparent reissuance of previously removed resource Observed only
ARIN-Issued
Add 204.137.12.0-204.137.12.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it reserved on 2024-04-02 and allocated (dated 2024-04-03) on 2024-04-04. The tracker saw this range released from hold on 2024-04-02 (204.137.12.0-204.137.12.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2024-04-02: Remove 204.137.12.0-204.137.12.255), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2024-04-03: "Add 204.137.12.0-204.137.12.255" source · retrieved
  2. Before ARIN delegated statistics 2024-04-02 (produced 2024-04-02T13:00:50+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2024-04-04 (produced 2024-04-04T13:00:49+00:00), after the report: allocated (dated 2024-04-03) 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
2024-04-03 ARIN − Remove Change to ARIN's own pool record Observed only
ARIN-Issued
Remove 204.137.12.0-204.137.12.255
Inventory
Part of the issuance reported the same day

ARIN's statistics show it reserved on 2024-04-02 and allocated (dated 2024-04-03) on 2024-04-04. ARIN removed its own pool record for this range as part of issuing it: the same report adds 204.137.12.0-204.137.12.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2024-04-02: Remove 204.137.12.0-204.137.12.255), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2024-04-03: "Remove 204.137.12.0-204.137.12.255" source · retrieved
  2. Before ARIN delegated statistics 2024-04-02 (produced 2024-04-02T13:00:50+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2024-04-04 (produced 2024-04-04T13:00:49+00:00), after the report: allocated (dated 2024-04-03) 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
2024-04-02 ARIN − Remove No substantive resource change found Observed only
ARIN-Issued
Remove 204.137.12.0-204.137.12.255
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 (2024-04-03: Remove 204.137.12.0-204.137.12.255; 2024-04-03: Add 204.137.12.0-204.137.12.255), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2024-04-02: "Remove 204.137.12.0-204.137.12.255" source · retrieved
  2. Before ARIN delegated statistics 2024-04-01 (produced 2024-04-01T13:00:49+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2024-04-03 (produced 2024-04-03T13:00:50+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
2023-02-07 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 2023-04-08. 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 2021-10-01) on 2023-02-06 and reserved on 2023-02-08. 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 2023-04-08. 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: 204.137.12.0/24 allocated on 2023-02-07, reserved on 2023-02-08 source · retrieved
  2. Before ARIN delegated statistics 2023-02-06 (produced 2023-02-06T14:00:10+00:00), before the report: allocated (dated 2021-10-01) source · retrieved
  3. After ARIN delegated statistics 2023-02-08 (produced 2023-02-08T14:00:11+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
2022-06-08 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: AP GP, LLC (ARIN) to AP GP Operations, LLC (ARIN)
From
AP GP, LLC ARIN
To
AP GP Operations, LLC ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from AP GP, LLC (ARIN) to AP GP Operations, LLC (ARIN) on 2022-06-08 21:37 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 2022-06-08 21:37 UTC, AP GP, LLC (ARIN) to AP GP Operations, LLC (ARIN); resources moved: 204.137.12.0/24 source · retrieved
  2. Before ARIN delegated statistics 2022-06-07 (produced 2022-06-07T13:00:13+00:00), before the report: allocated (dated 2021-10-01) source · retrieved
  3. After ARIN delegated statistics 2022-06-09 (produced 2022-06-09T13:00:13+00:00), after the report: allocated (dated 2021-10-01) source · retrieved
2021-10-01 ARIN + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add 204.137.12.0-204.137.12.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it reserved on 2021-09-30 and allocated (dated 2021-10-01) on 2021-10-02. The tracker saw this range removed from registration on 2020-09-07 (204.137.12.0/24), 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 2021-10-01: "Add 204.137.12.0-204.137.12.255" source · retrieved
  2. Before ARIN delegated statistics 2021-09-30 (produced 2021-09-30T14:00:13+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2021-10-02 (produced 2021-10-02T14:00:14+00:00), after the report: allocated (dated 2021-10-01) 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
2021-10-01 ARIN − Remove Change to ARIN's own pool record Strong inference
ARIN-Issued
Remove 204.137.12.0-204.137.12.255
Inventory
Part of the issuance reported the same day

ARIN's statistics show it reserved on 2021-09-30 and allocated (dated 2021-10-01) on 2021-10-02. ARIN removed its own pool record for this range as part of issuing it: the same report adds 204.137.12.0-204.137.12.255. The issuance is explained on that line.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2021-10-01: "Remove 204.137.12.0-204.137.12.255" source · retrieved
  2. Before ARIN delegated statistics 2021-09-30 (produced 2021-09-30T14:00:13+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2021-10-02 (produced 2021-10-02T14:00:14+00:00), after the report: allocated (dated 2021-10-01) 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
2020-09-07 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 2020-11-06. 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 1994-08-29) on 2020-09-06 and reserved on 2020-09-08. 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 2020-11-06. 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: 204.137.12.0/24 assigned on 2020-09-07, reserved on 2020-09-08 source · retrieved
  2. Before ARIN delegated statistics 2020-09-06 (produced 2020-09-06T14:00:14+00:00), before the report: assigned (dated 1994-08-29) source · retrieved
  3. After ARIN delegated statistics 2020-09-08 (produced 2020-09-08T14:00:13+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 acquisition204.137.12.0/24 AP GP, LLC ARINAP GP Operations, LLC ARIN

Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this IPv4 range (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: ip/204.137.12.0-204.137.12.255.json