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.
San Joaquin Valley Unified Air Pollution Control District ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a transfer from PF IPV4 Borrower, LLC (ARIN) to San Joaquin Valley Unified Air Pollution Control District (ARIN) on 2026-10-26 18:33 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,
ARIN-IssuedARIN-Issued report for 2026-10-26: "Add 216.52.237.0-216.52.237.255"source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2026-10-26 18:33 UTC, PF IPV4 Borrower, LLC (ARIN) to San Joaquin Valley Unified Air Pollution Control District (ARIN); resources moved: 216.52.237.0/24source · retrieved
BeforeARIN delegated statistics 2026-10-25 (produced 2026-10-25T13:00:21+00:00), before the report: allocated (dated 1998-08-24)source · retrieved
AfterARIN delegated statistics 2026-10-27 (produced 2026-10-27T13:00:21+00:00), after the report: allocated (dated 2026-10-26)source · retrieved
San Joaquin Valley Unified Air Pollution Control District ARIN
ARIN
Merger acquisition
216.52.192.0/18
Unitas Global ARIN
PF IPV4 Borrower, LLC ARIN
ARIN
Merger acquisition
216.52.128.0/17
Internap Holding LLC ARIN
Unitas Global ARIN
ARIN
Merger acquisition
216.52.0.0/16
Internap Network Services Corporation ARIN
Internap Corporation 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
Looked up
Why
Registry
Handle
Organization
Status
Last changed
After 7 days
ARIN
NET-216-52-237-0-1
San Joaquin Valley Unified Air Pollution Control District SJVUAPCD
active
2026-10-26
After 24 hours
ARIN
NET-216-52-237-0-1
San Joaquin Valley Unified Air Pollution Control District SJVUAPCD
active
2026-10-26
First seen
ARIN
NET-216-52-237-0-1
San Joaquin Valley Unified Air Pollution Control District SJVUAPCD
active
2026-10-26
Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.