rirtracker

IPv4 range · 8,192 addresses

164.37.128.0/19

Now

RIPE NCC statistics
Assigned (dated 1993-01-31) (US), in the latest file
Registry
RIPE NCC
Holder
lir-us-wookra-1-MNT
From
RDAP, looked up 2026-10-23 18:20 UTC

Latest change

Transfer log Intra-RIPE NCC transfer

Reported
2026-10-16 (RIPE NCC)
Confidence
Confirmed
Inventory
No effect on RIPE NCC applicant inventory

Timeline (1)

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.

2026-10-16 RIPE NCC Transfer log Intra-RIPE NCC transfer Confirmed
Transfer log
Transfer: Apoteket AB (RIPE NCC) to Wookra, LLC (RIPE NCC)
From
Apoteket AB RIPE NCC
To
Wookra, LLC RIPE NCC
Inventory
No effect on RIPE NCC applicant inventory

The RIPE NCC's transfer log records a transfer from Apoteket AB (RIPE NCC) to Wookra, LLC (RIPE NCC) on 2026-10-16 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.

Evidence (2) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2026-10-16 19:00 UTC, Apoteket AB (RIPE NCC) to Wookra, LLC (RIPE NCC); resources moved: 164.37.128.0/19 source · retrieved
  2. Before RIPE NCC delegated statistics 2026-10-15 (produced 2026-10-15T21:59:59+00:00), before the change: assigned (dated 1993-01-31) source · retrieved

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2023-03-20RIPE NCC164.37.0.0/16Transfer logIntra-RIPE NCC transfer

Transfer records (2)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer164.37.128.0/19 Apoteket AB RIPE NCCWookra, LLC RIPE NCC
RIPE NCCResource transfer164.37.0.0/16 Semcon Sweden AB RIPE NCCApoteket AB RIPE NCC

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 RIPE NCC164.37.128.0 - 164.37.159.255lir-us-wookra-1-MNTactive2026-10-23
After 24 hours RIPE NCC164.37.128.0 - 164.37.159.255lir-us-wookra-1-MNTactive2026-10-16
First seen RIPE NCC164.37.128.0 - 164.37.159.255lir-us-wookra-1-MNTactive2026-10-16

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

This page as data: ip/164.37.128.0-164.37.159.255.json