rirtracker

IPv4 range · 2,048 addresses

37.9.248.0/21

Now

RIPE NCC statistics
Allocated (dated 2011-12-16) (IR), in the latest file
Registry
RIPE NCC
Holder
Not looked up
From
The RIPE NCC's latest statistics

Latest change

+ Registered Apparent reissuance of previously removed resource

Reported
2011-12-16 (RIPE NCC)
Confidence
Strong inference
Inventory
Likely issued from RIPE NCC-controlled 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.

2011-12-16 RIPE NCC + Registered Apparent reissuance of previously removed resource Strong inference
Statistics
37.9.248.0/21 available on 2011-12-15, allocated on 2011-12-16
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2011-12-15 and allocated (dated 2011-12-16) on 2011-12-16. The tracker saw this range removed from registration on 2011-07-06 (37.0.0.0/10), so it appears to have been issued again from the RIPE NCC's pool.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 37.9.248.0/21 available on 2011-12-15, allocated on 2011-12-16 source · retrieved
  2. Before RIPE NCC delegated statistics 2011-12-15 (produced 2011-12-15T22:59:59+00:00), before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2011-12-16 (produced 2011-12-16T22:59:59+00:00), after the change: allocated (dated 2011-12-16) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.0)
  2. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.1)
  3. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.2)
  4. : Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current

Sold in pieces

1 piece of this block transferred since 2010-04-23, 50% of it so far.

DatePieceWhat happenedFromTo
2020-01-20 37.9.252.0/22Intra-RIPE NCC transfer Samen Ertebat Asr Co. (P.J.S.) RIPE NCCBaharan PLC RIPE NCC

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2020-01-20RIPE NCC37.9.252.0/22Transfer logIntra-RIPE NCC transfer
2011-07-06RIPE NCC37.0.0.0/10− DeregisteredRemoved
2011-03-01RIPE NCC37.0.0.0/10+ RegisteredUnresolved

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer37.9.252.0/22 Samen Ertebat Asr Co. (P.J.S.) RIPE NCCBaharan PLC 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

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/37.9.248.0-37.9.255.255.json