rirtracker

IPv4 range · 256 addresses

185.83.158.0/24

Now

ARIN statistics
Allocated (dated 2026-10-14) (US), in the latest file
Registry
ARIN
Holder
Blue Flag BFC-143
From
RDAP, looked up 2026-10-22 18:48 UTC

Latest change

+ Add Inter-RIR transfer into ARIN

Reported
2026-10-14 (ARIN)
Confidence
Confirmed
Inventory
Transferred into ARIN administration; not a new issuance

Timeline (2)

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.

2026-10-14 ARIN + Add Inter-RIR transfer into ARIN Confirmed
ARIN-Issued
Add 185.83.158.0-185.83.158.255
From
Addrex, Inc. RIPE NCC
To
Blue Flag ARIN
Same transfer
Also a change at the RIPE NCC, the sending registry: RIPE NCC, 2026-10-14. 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 Addrex, Inc. (RIPE NCC) to Blue Flag (ARIN) on 2026-10-14 14:34 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,
  1. ARIN-Issued ARIN-Issued report for 2026-10-14: "Add 185.83.158.0-185.83.158.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2026-10-14 14:34 UTC, Addrex, Inc. (RIPE NCC) to Blue Flag (ARIN); resources moved: 185.83.158.0/24 source · retrieved
  3. Before ARIN delegated statistics 2026-10-13 (produced 2026-10-13T13:00:21+00:00), before the report: not listed source · retrieved
  4. After ARIN delegated statistics 2026-10-15 (produced 2026-10-15T13:00:21+00:00), after the report: allocated (dated 2026-10-14) source · retrieved
2026-10-14 RIPE NCC Transfer log Inter-RIR transfer out of the RIPE NCC Confirmed
Transfer log
Transfer: Addrex, Inc. (RIPE NCC) to (no name) (ARIN)
From
Addrex, Inc. RIPE NCC
To
(no name given) ARIN
Same transfer
ARIN recorded it too: ARIN, 2026-10-14.
Inventory
Transferred out of RIPE NCC administration; not offered to RIPE NCC applicants

The RIPE NCC's transfer log records a transfer from Addrex, Inc. (RIPE NCC) to an unnamed organization (ARIN) on 2026-10-14 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 (2) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2026-10-14 19:00 UTC, Addrex, Inc. (RIPE NCC) to (no name) (ARIN); resources moved: 185.83.158.0/24 source · retrieved
  2. Before RIPE NCC delegated statistics 2026-10-13 (produced 2026-10-13T21:59:59+00:00), before the change: allocated (dated 2015-01-09) source · retrieved

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2015-01-09RIPE NCC185.83.156.0/22+ RegisteredApparent new issuance

Transfer records (2)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer185.83.158.0/24 Addrex, Inc. RIPE NCC(no name given) ARIN
ARINResource transfer185.83.158.0/24 Addrex, Inc. RIPE NCCBlue Flag 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 upWhyRegistryHandleOrganizationStatusLast changed
After 7 days ARINNET-185-83-158-0-1Blue Flag BFC-143active2026-10-21
After 7 days ARINNET-185-83-158-0-1Blue Flag BFC-143active2026-10-21
After 24 hours ARINNET-185-83-158-0-1Blue Flag BFC-143active2026-10-14
First seen RIPE NCC185.0.0.0/8administrative2002-06-25
After 24 hours RIPE NCC185.0.0.0/8administrative2002-06-25
First seen RIPE NCC185.0.0.0/8administrative2002-06-25

Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.

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