rirtracker

IPv4 range · 65,536 addresses

144.31.0.0/16

Now

RIPE NCC statistics
Allocated (dated 2025-03-25) (US), in the latest file
Registry
RIPE NCC
Holder
Ace Data Centers II, LLC
From
The RIPE NCC's latest statistics and the latest transfer record

Latest change

Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable)

Reported
2025-08-19 (ARIN)
Confidence
Observed only
Inventory
Possible future reissue candidate after hold

Timeline (4)

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.

2025-08-19 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Observed only
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2025-10-18. 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 2025-03-12) on 2025-08-18 and not listed on 2025-08-20. Being gone from ARIN's statistics entirely can also mean it moved to another registry. 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 2025-10-18. 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: 144.31.0.0/16 allocated on 2025-08-19, not listed on 2025-08-20 source · retrieved
  2. Before ARIN delegated statistics 2025-08-18 (produced 2025-08-18T13:00:50+00:00), before the report: allocated (dated 2025-03-12) source · retrieved
  3. After ARIN delegated statistics 2025-08-20 (produced 2025-08-20T13:00:51+00:00), after the report: not listed source · retrieved
Classification history for this change (4 versions)
  1. : Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.0)
  2. : Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.1)
  3. : Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.2)
  4. : Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.4.0) current
2025-08-19 RIPE NCC Transfer log Inter-RIR transfer into the RIPE NCC Confirmed
Transfer log
Transfer: (no name) (ARIN) to Ace Data Centers II, LLC (RIPE NCC)
From
(no name given) ARIN
To
Ace Data Centers II, LLC RIPE NCC
Inventory
Transferred into RIPE NCC administration; not a new issuance

The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to Ace Data Centers II, LLC (RIPE NCC) on 2025-08-19 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance.

Evidence (3) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2025-08-19 19:00 UTC, (no name) (ARIN) to Ace Data Centers II, LLC (RIPE NCC); resources moved: 144.31.0.0/16 source · retrieved
  2. Before RIPE NCC delegated statistics 2025-08-18 (produced 2025-08-18T21:59:59+00:00), before the change: not listed source · retrieved
  3. After RIPE NCC delegated statistics 2025-08-19 (produced 2025-08-19T21:59:59+00:00), after the change: allocated (dated 2025-03-25) source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer into the RIPE NCC, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer into the RIPE NCC, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer into the RIPE NCC, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer into the RIPE NCC, confirmed (classifier 1.4.0) current
2025-03-12 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 144.31.0.0-144.31.255.255
From
PNC Bank, National Association ARIN
To
Ace Data Centers II, L.L.C. ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from PNC Bank, National Association (ARIN) to Ace Data Centers II, L.L.C. (ARIN) on 2025-03-12 18:47 UTC. ARIN-Issued lists it as "Add" because the registration changed hands; it is not a new allocation from ARIN.

Evidence (4) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-03-12: "Add 144.31.0.0-144.31.255.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2025-03-12 18:47 UTC, PNC Bank, National Association (ARIN) to Ace Data Centers II, L.L.C. (ARIN); resources moved: 144.31.0.0/16 source · retrieved
  3. Before ARIN delegated statistics 2025-03-11 (produced 2025-03-11T13:01:06+00:00), before the report: allocated (dated 1990-11-09) source · retrieved
  4. After ARIN delegated statistics 2025-03-13 (produced 2025-03-13T13:01:07+00:00), after the report: allocated (dated 2025-03-12) source · retrieved
Classification history for this change (4 versions)
  1. : Intra-ARIN transfer, confirmed (classifier 1.3.0)
  2. : Intra-ARIN transfer, confirmed (classifier 1.3.1)
  3. : Intra-ARIN transfer, confirmed (classifier 1.3.2)
  4. : Intra-ARIN transfer, confirmed (classifier 1.4.0) current
2025-01-24 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: Coastal Capital Funding Corporation (ARIN) to PNC Bank, National Association (ARIN)
From
Coastal Capital Funding Corporation ARIN
To
PNC Bank, National Association ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from Coastal Capital Funding Corporation (ARIN) to PNC Bank, National Association (ARIN) on 2025-01-24 18:23 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 2025-01-24 18:23 UTC, Coastal Capital Funding Corporation (ARIN) to PNC Bank, National Association (ARIN); resources moved: 144.31.0.0/16 source · retrieved
  2. Before ARIN delegated statistics 2025-01-23 (produced 2025-01-23T14:01:06+00:00), before the report: allocated (dated 1990-11-09) source · retrieved
  3. After ARIN delegated statistics 2025-01-25 (produced 2025-01-25T14:01:06+00:00), after the report: allocated (dated 1990-11-09) source · retrieved

Transfer records (3)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer144.31.0.0/16 (no name given) ARINAce Data Centers II, LLC RIPE NCC
ARINResource transfer144.31.0.0/16 PNC Bank, National Association ARINAce Data Centers II, L.L.C. ARIN
ARINMerger acquisition144.31.0.0/16 Coastal Capital Funding Corporation ARINPNC Bank, National Association 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/144.31.0.0-144.31.255.255.json