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.
2026-06-26ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: Disaster Networks, LLC (ARIN) to Network Advisors, LLC (ARIN)
From
Disaster Networks, LLC ARIN
To
Network Advisors, LLC ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from Disaster Networks, LLC (ARIN) to Network Advisors, LLC (ARIN) on 2026-06-26 19:47 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,
Transfer logTransfer log: MERGER_ACQUISITION on 2026-06-26 19:47 UTC, Disaster Networks, LLC (ARIN) to Network Advisors, LLC (ARIN); resources moved: 185.212.4.0/24source · retrieved
BeforeARIN delegated statistics 2026-06-25 (produced 2026-06-25T09:00:20+00:00), before the report: allocated (dated 2020-08-06)source · retrieved
AfterARIN delegated statistics 2026-06-27 (produced 2026-06-27T09:00:19+00:00), after the report: allocated (dated 2020-08-06)source · retrieved
2020-08-06ARIN+ AddInter-RIR transfer into ARINConfirmed
ARIN-Issued
Add 185.212.4.0-185.212.4.255
From
Coer Holdings BV RIPE NCC
To
Disaster Networks, LLC ARIN
Same transfer
Also a change at the RIPE NCC, the sending registry: RIPE NCC, 2020-08-06. Lists that cover every registry show it there.
Inventory
Transferred into ARIN administration; not a new issuance
ARIN's transfer log records a transfer from Coer Holdings BV (RIPE NCC) to Disaster Networks, LLC (ARIN) on 2020-08-06 13:44 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance.
Evidence (4) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2020-08-06: "Add 185.212.4.0-185.212.4.255"source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2020-08-06 13:44 UTC, Coer Holdings BV (RIPE NCC) to Disaster Networks, LLC (ARIN); resources moved: 185.212.4.0/24source · retrieved
BeforeARIN delegated statistics 2020-08-05 (produced 2020-08-05T14:00:13+00:00), before the report: not listedsource · retrieved
AfterARIN delegated statistics 2020-08-07 (produced 2020-08-07T14:00:13+00:00), after the report: allocated (dated 2020-08-06)source · retrieved
Classification history for this change (4 versions)
: Inter-RIR transfer into ARIN, confirmed (classifier 1.3.0)
: Inter-RIR transfer into ARIN, confirmed (classifier 1.3.1)
: Inter-RIR transfer into ARIN, confirmed (classifier 1.3.2)
: Inter-RIR transfer into ARIN, confirmed (classifier 1.4.0) current
2020-08-06RIPE NCCTransfer logInter-RIR transfer out of the RIPE NCCConfirmed
Transfer log
Transfer: Coer Holdings BV (RIPE NCC) to (no name) (ARIN)
Transferred out of RIPE NCC administration; not offered to RIPE NCC applicants
The RIPE NCC's transfer log records a transfer from Coer Holdings BV (RIPE NCC) to an unnamed organization (ARIN) on 2020-08-06 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants.
Evidence (3) · classifier 1.4.0,
Transfer logTransfer log: RESOURCE_TRANSFER on 2020-08-06 19:00 UTC, Coer Holdings BV (RIPE NCC) to (no name) (ARIN); resources moved: 185.212.4.0/24source · retrieved
BeforeRIPE NCC delegated statistics 2020-08-05 (produced 2020-08-05T21:59:59+00:00), before the change: allocated (dated 2017-07-10)source · retrieved
AfterRIPE NCC delegated statistics 2020-08-06 (produced 2020-08-06T21:59:59+00:00), after the change: not listedsource · retrieved
Classification history for this change (4 versions)
: Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.0)
: Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.1)
: Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.2)
: Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.4.0) current
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.