rirtracker

IPv4 range · 3 prefixes · 137,216 addresses

37.157.232.0 - 37.159.255.255

37.157.232.0/21, 37.157.240.0/20, 37.158.0.0/15

Now

RIPE NCC statistics
Allocated (dated 2012-03-16), allocated (dated 2012-03-19) (DE, ES, GB, IT, RU), in the latest file
Registry
RIPE NCC
Holder
Not looked up
From
The RIPE NCC's latest statistics

Latest change

Released Released from hold (the RIPE NCC lists it as 'available')

Reported
2012-03-15 (RIPE NCC)
Confidence
Observed only
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

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.

2012-03-15 RIPE NCC Released Released from hold (the RIPE NCC lists it as 'available') Observed only
Statistics
37.157.232.0 - 37.159.255.255 reserved on 2012-03-14, available on 2012-03-15
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

The RIPE NCC's statistics show it reserved on 2012-03-14 and available on 2012-03-15. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2012-03-16: Added 37.157.232.0/21; 2012-03-16: Added 37.157.240.0/21; 2012-03-16: Added 37.157.248.0/21), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 37.157.232.0 - 37.159.255.255 reserved on 2012-03-14, available on 2012-03-15 source · retrieved
  2. Before RIPE NCC delegated statistics 2012-03-14 (produced 2012-03-14T22:59:59+00:00), before the change: reserved source · retrieved
  3. After RIPE NCC delegated statistics 2012-03-15 (produced 2012-03-15T22:59:59+00:00), after the change: available source · retrieved
Classification history for this change (4 versions)
  1. : Released from hold (the RIPE NCC lists it as 'available'), observed only (classifier 1.3.0)
  2. : Released from hold (the RIPE NCC lists it as 'available'), observed only (classifier 1.3.1)
  3. : Released from hold (the RIPE NCC lists it as 'available'), observed only (classifier 1.3.2)
  4. : Released from hold (the RIPE NCC lists it as 'available'), observed only (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-01-29RIPE NCC37.159.0.0/16Transfer logMerger/acquisition
2024-06-04RIPE NCC37.157.240.0/21Transfer logMerger/acquisition
2024-04-23RIPE NCC37.157.248.0/21Transfer logMerger/acquisition
2012-03-19RIPE NCC37.159.0.0/16+ RegisteredApparent new issuance
2012-03-16RIPE NCC37.157.232.0/21+ RegisteredApparent new issuance
2012-03-16RIPE NCC37.157.240.0/21+ RegisteredApparent new issuance
2012-03-16RIPE NCC37.157.248.0/21+ RegisteredApparent new issuance
2012-03-16RIPE NCC37.158.0.0/16+ RegisteredApparent new issuance

Transfer records (3)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCMerger acquisition37.159.0.0/16 Vodafone Italia S.p.A. RIPE NCCFastweb SpA RIPE NCC
RIPE NCCMerger acquisition37.157.240.0/21 Redstation Limited RIPE NCCIomart Managed Services Limited RIPE NCC
RIPE NCCMerger acquisition37.157.248.0/21 myLoc managed IT AG RIPE NCCWIIT AG 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.

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