rirtracker

IPv4 range · 16,384 addresses

37.44.192.0/18

Now

RIPE NCC statistics
Allocated (dated 2018-11-09), allocated (dated 2018-11-12), allocated (dated 2021-05-21), allocated (dated 2021-05-25) (AT, BE, CZ, DE, DK, FR, GB, IL, LT, LV, MC, RU, SC, SE, UA, 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
2018-07-09 (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.

2018-07-09 RIPE NCC Released Released from hold (the RIPE NCC lists it as 'available') Strong inference
Statistics
37.44.192.0/18 reserved on 2018-07-08, available on 2018-07-09
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

The RIPE NCC's statistics show it reserved on 2018-07-08 and available on 2018-07-09. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2018-02-20, 139 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: 37.44.192.0/18 reserved on 2018-07-08, available on 2018-07-09 source · retrieved
  2. Before RIPE NCC delegated statistics 2018-07-08 (produced 2018-07-08T21:59:59+00:00), before the change: reserved source · retrieved
  3. After RIPE NCC delegated statistics 2018-07-09 (produced 2018-07-09T21:59:59+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
2018-02-20 RIPE NCC − Deregistered Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Statistics
37.44.192.0/18 allocated on 2018-02-19, reserved on 2018-02-20
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2018-08-19. Possible reissue candidate after this date; not confirmed available.

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 2012-01-09) on 2018-02-19 and reserved on 2018-02-20. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2018-08-19. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 37.44.192.0/18 allocated on 2018-02-19, reserved on 2018-02-20 source · retrieved
  2. Before RIPE NCC delegated statistics 2018-02-19 (produced 2018-02-19T22:59:59+00:00), before the change: allocated (dated 2012-01-09) source · retrieved
  3. After RIPE NCC delegated statistics 2018-02-20 (produced 2018-02-20T22:59:59+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
2012-01-09 RIPE NCC + Registered Apparent reissuance of previously removed resource Strong inference
Statistics
37.44.192.0/18 available on 2012-01-08, allocated on 2012-01-09
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2012-01-08 and allocated (dated 2012-01-09) on 2012-01-09. 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: 37.44.192.0/18 available on 2012-01-08, allocated on 2012-01-09 source · retrieved
  2. Before RIPE NCC delegated statistics 2012-01-08 (produced 2012-01-08T22:59:59+00:00), before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2012-01-09 (produced 2012-01-09T22:59:59+00:00), after the change: allocated (dated 2012-01-09) 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

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-10-05RIPE NCC37.44.208.0/22Transfer logMerger/acquisition
2025-11-07RIPE NCC37.44.199.0/24Transfer logIntra-RIPE NCC transfer
2024-08-26RIPE NCC37.44.196.0/23Transfer logIntra-RIPE NCC transfer
2024-08-26RIPE NCC37.44.198.0/24Transfer logIntra-RIPE NCC transfer
2024-01-02RIPE NCC37.44.236.0/24Transfer logIntra-RIPE NCC transfer
2024-01-02RIPE NCC37.44.238.0/24Transfer logIntra-RIPE NCC transfer
2023-12-29RIPE NCC37.44.237.0/24Transfer logIntra-RIPE NCC transfer
2023-12-29RIPE NCC37.44.239.0/24Transfer logIntra-RIPE NCC transfer
2023-11-16RIPE NCC37.44.215.0/24Transfer logIntra-RIPE NCC transfer
2023-07-24RIPE NCC37.44.214.0/24Transfer logIntra-RIPE NCC transfer
2023-05-30RIPE NCC37.44.252.0/22Transfer logIntra-RIPE NCC transfer
2022-10-20RIPE NCC37.44.194.0/23Transfer logIntra-RIPE NCC transfer
2022-10-17RIPE NCC37.44.192.0/23Transfer logIntra-RIPE NCC transfer
2021-05-25RIPE NCC37.44.214.0/24+ RegisteredApparent reissuance
2021-05-25RIPE NCC37.44.215.0/24+ RegisteredApparent reissuance
2021-05-21RIPE NCC37.44.212.0/24+ RegisteredApparent reissuance
2021-05-21RIPE NCC37.44.213.0/24+ RegisteredApparent reissuance
2021-05-16RIPE NCC37.44.212.0/22ReleasedHold released
2020-11-30RIPE NCC37.44.196.0/22Transfer logIntra-RIPE NCC transfer
2020-11-23RIPE NCC37.44.200.0/22Transfer logIntra-RIPE NCC transfer
2020-11-23RIPE NCC37.44.228.0/22Transfer logIntra-RIPE NCC transfer
2020-11-20RIPE NCC37.44.248.0/22Transfer logIntra-RIPE NCC transfer
2020-11-17RIPE NCC37.44.212.0/22− DeregisteredRemoved
2018-11-12RIPE NCC37.44.216.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.220.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.224.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.228.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.232.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.236.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.240.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.244.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.248.0/22+ RegisteredApparent reissuance
2018-11-12RIPE NCC37.44.252.0/22+ RegisteredApparent reissuance
2018-11-09RIPE NCC37.44.192.0/22+ RegisteredApparent reissuance
2018-11-09RIPE NCC37.44.196.0/22+ RegisteredApparent reissuance
2018-11-09RIPE NCC37.44.200.0/22+ RegisteredApparent reissuance
2018-11-09RIPE NCC37.44.204.0/22+ RegisteredApparent reissuance
2018-11-09RIPE NCC37.44.208.0/22+ RegisteredApparent reissuance
2018-11-09RIPE NCC37.44.212.0/22+ RegisteredApparent reissuance
2011-07-06RIPE NCC37.0.0.0/10− DeregisteredRemoved
2011-03-01RIPE NCC37.0.0.0/10+ RegisteredUnresolved

Transfer records (15)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCMerger acquisition37.44.208.0/22 Edera Group a.s. RIPE NCCCEZNET s.r.o. RIPE NCC
RIPE NCCResource transfer37.44.199.0/24 LIR LLC RIPE NCCFiber Ltd RIPE NCC
RIPE NCCResource transfer37.44.196.0/23 LIR LLC RIPE NCC"Cloud Technologies" LLC trading as Cloud.ru RIPE NCC
RIPE NCCResource transfer37.44.236.0/24 Harmony Hosting SARL RIPE NCCFBW NETWORKS SAS RIPE NCC
RIPE NCCResource transfer37.44.238.0/24 Harmony Hosting SARL RIPE NCCFBW NETWORKS SAS RIPE NCC
RIPE NCCResource transfer37.44.237.0/24 Harmony Hosting SARL RIPE NCCFBW NETWORKS SAS RIPE NCC
RIPE NCCResource transfer37.44.215.0/24 WEB HOSTING AND INTERNET SERVICES LTD RIPE NCCIP One GmbH RIPE NCC
RIPE NCCResource transfer37.44.214.0/24 Uplink SRL RIPE NCCUA-Hosting SIA RIPE NCC
RIPE NCCResource transfer37.44.252.0/22 Atex LLC RIPE NCCMiranda-Media Ltd RIPE NCC
RIPE NCCResource transfer37.44.194.0/23 Sysoev Aleksey Anatolevich RIPE NCCIGRA-SERVICE LLC RIPE NCC
RIPE NCCResource transfer37.44.192.0/23 Sysoev Aleksey Anatolevich RIPE NCCIGRA-SERVICE LLC RIPE NCC
RIPE NCCResource transfer37.44.196.0/22 Express Courier LLC RIPE NCCLIR LLC RIPE NCC
RIPE NCCResource transfer37.44.200.0/22 Goriweb LLC RIPE NCCIPPN HOLDINGS LTD RIPE NCC
RIPE NCCResource transfer37.44.228.0/22 Semih Mehmet CAN RIPE NCCNetwise Hosting Ltd RIPE NCC
RIPE NCCResource transfer37.44.248.0/22 Hostnordic Koebenhavn A/S RIPE NCCIT RELATION AS 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/37.44.192.0-37.44.255.255.json