rirtracker

IPv4 range · 16,384 addresses

37.221.64.0/18

Now

RIPE NCC statistics
Allocated (dated 2018-11-12) (CZ, DE, FR, IT, MD, PL, RO, RU, SC, SE, TR, US), 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
2014-06-20 (RIPE NCC)
Confidence
Strong inference
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

Timeline (3)

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.

2014-06-20 RIPE NCC Released Released from hold (the RIPE NCC lists it as 'available') Strong inference
Statistics
37.221.64.0/18 reserved on 2014-06-19, available on 2014-06-20
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

The RIPE NCC's statistics show it reserved on 2014-06-19 and available on 2014-06-20. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2013-06-20, 365 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 37.221.64.0/18 reserved on 2014-06-19, available on 2014-06-20 source · retrieved
  2. Before RIPE NCC delegated statistics 2014-06-19 (produced 2014-06-19T21:59:59+00:00), before the change: reserved source · retrieved
  3. After RIPE NCC delegated statistics 2014-06-20 (produced 2014-06-20T21:59:59+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'), strong inference (classifier 1.3.0)
  2. : Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.3.1)
  3. : Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.3.2)
  4. : Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.4.0) current
2013-06-20 RIPE NCC − Deregistered Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Statistics
37.221.64.0/18 allocated on 2013-06-19, reserved on 2013-06-20
Inventory
Possible future reissue candidate after hold

Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2012-04-05) on 2013-06-19 and reserved on 2013-06-20. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for IPv4 space applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 37.221.64.0/18 allocated on 2013-06-19, reserved on 2013-06-20 source · retrieved
  2. Before RIPE NCC delegated statistics 2013-06-19 (produced 2013-06-19T21:59:59+00:00), before the change: allocated (dated 2012-04-05) source · retrieved
  3. After RIPE NCC delegated statistics 2013-06-20 (produced 2013-06-20T21:59:59+00:00), after the change: reserved source · retrieved
Classification history for this change (4 versions)
  1. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
  2. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
  3. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
  4. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.4.0) current
2012-04-05 RIPE NCC + Registered Apparent new issuance Strong inference
Statistics
37.221.64.0/18 available on 2012-04-04, allocated on 2012-04-05
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2012-04-04 and allocated (dated 2012-04-05) on 2012-04-05. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 37.221.64.0/18 available on 2012-04-04, allocated on 2012-04-05 source · retrieved
  2. Before RIPE NCC delegated statistics 2012-04-04 (produced 2012-04-04T21:59:59+00:00), before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2012-04-05 (produced 2012-04-05T21:59:59+00:00), after the change: allocated (dated 2012-04-05) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent new issuance, strong inference (classifier 1.3.0)
  2. : Apparent new issuance, strong inference (classifier 1.3.1)
  3. : Apparent new issuance, strong inference (classifier 1.3.2)
  4. : Apparent new issuance, strong inference (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2025-12-18RIPE NCC37.221.96.0/22Transfer logIntra-RIPE NCC transfer
2024-09-02RIPE NCC37.221.72.0/22Transfer logMerger/acquisition
2024-07-18RIPE NCC37.221.120.0/22Transfer logIntra-RIPE NCC transfer
2024-04-09RIPE NCC37.221.124.0/22Transfer logIntra-RIPE NCC transfer
2024-03-13RIPE NCC37.221.88.0/22Transfer logMerger/acquisition
2024-02-07RIPE NCC37.221.80.0/22Transfer logIntra-RIPE NCC transfer
2023-03-24RIPE NCC37.221.108.0/22Transfer logIntra-RIPE NCC transfer
2021-12-27RIPE NCC37.221.88.0/22Transfer logMerger/acquisition
2021-07-19RIPE NCC37.221.116.0/22Transfer logIntra-RIPE NCC transfer
2021-06-01RIPE NCC37.221.72.0/22Transfer logMerger/acquisition
2020-12-14RIPE NCC37.221.120.0/22Transfer logMerger/acquisition
2020-12-01RIPE NCC37.221.124.0/22Transfer logIntra-RIPE NCC transfer
2020-11-24RIPE NCC37.221.96.0/22Transfer logIntra-RIPE NCC transfer
2020-10-15RIPE NCC37.221.84.0/22Transfer logMerger/acquisition
2020-05-27RIPE NCC37.221.76.0/22Transfer logMerger/acquisition
2018-11-12RIPE NCC37.221.64.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.68.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.72.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.76.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.80.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.84.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.88.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.92.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.96.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.100.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.104.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.108.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.112.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.116.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.120.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.221.124.0/22+ RegisteredApparent reissuance

Transfer records (15)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer37.221.96.0/22 MavianMax srl RIPE NCCRetelit Digital Services S.p.A. RIPE NCC
RIPE NCCMerger acquisition37.221.72.0/22 Unzer GmbH RIPE NCCUnzer Group GmbH RIPE NCC
RIPE NCCResource transfer37.221.120.0/22 Neterra Ltd. RIPE NCCOpen Fiber S.P.A. RIPE NCC
RIPE NCCResource transfer37.221.124.0/22 Access2.IT Group B.V. RIPE NCCWEISS HOSTING GROUP S.R.L. RIPE NCC
RIPE NCCMerger acquisition37.221.88.0/22 Aricoma Systems a.s. RIPE NCCCloud4com s.r.o. RIPE NCC
RIPE NCCResource transfer37.221.80.0/22 Admin LLC RIPE NCCiNet Ltd RIPE NCC
RIPE NCCResource transfer37.221.108.0/22 Alax LLC RIPE NCCBeyond Tomorrow Ltd RIPE NCC
RIPE NCCMerger acquisition37.221.88.0/22 DataSpring s.r.o. RIPE NCCAUTOCONT a.s. RIPE NCC
RIPE NCCResource transfer37.221.116.0/22 ASOKNO PRAHA, s.r.o. RIPE NCCi-registry s.r.o. RIPE NCC
RIPE NCCMerger acquisition37.221.72.0/22 heidelpay Systems GmbH RIPE NCCheidelpay Group GmbH RIPE NCC
RIPE NCCMerger acquisition37.221.120.0/22 Mayak Smart Services Ltd. RIPE NCCNeterra Ltd. RIPE NCC
RIPE NCCResource transfer37.221.124.0/22 UAB Muzita RIPE NCCAccess2.IT Group B.V. RIPE NCC
RIPE NCCResource transfer37.221.96.0/22 Mavian Srl RIPE NCCMavianMax srl RIPE NCC
RIPE NCCMerger acquisition37.221.84.0/22 MEDIACOM ACCESS S.A.R.L. RIPE NCCMEDIA COMMUNICATION IDF S.A.R.L. RIPE NCC
RIPE NCCMerger acquisition37.221.76.0/22 Koinci Bilisim Teknoloji Limited Sirketi RIPE NCCHop Bilisim Teknolojileri Anonim Sirketi 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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