rirtracker

IPv4 range · 16,777,216 addresses

57.0.0.0/8

Now

ARIN statistics
Allocated (dated 2022-02-03), allocated (dated 2022-02-08), allocated (dated 2022-02-09), allocated (dated 2022-03-28), allocated (dated 2022-07-18), allocated (dated 2022-08-22), allocated (dated 2022-08-23), allocated (dated 2024-01-25), allocated (dated 2026-08-03) (CA, US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable)

Reported
2014-10-14 (ARIN)
Confidence
Observed only
Inventory
Possible future reissue candidate after hold

Hold

Removed
2014-10-14 (ARIN)
Estimated hold end
2014-12-13 (from ARIN's published rule)
Now
Possible reissue candidate; not confirmed available.

Timeline (2)

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.

2014-10-14 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Observed only
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2014-12-13. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 1993-06-21) on 2014-10-13 and not listed on 2014-10-15. Being gone from ARIN's statistics entirely can also mean it moved to another registry. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2014-12-13. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 57.0.0.0/8 assigned on 2014-10-14, not listed on 2014-10-15 source · retrieved
  2. Before ARIN delegated statistics 2014-10-13 (produced 2014-10-13T05:03:47+00:00), before the report: assigned (dated 1993-06-21) source · retrieved
  3. After ARIN delegated statistics 2014-10-15 (produced 2014-10-15T05:03:54+00:00), after the report: not listed source · retrieved
Classification history for this change (4 versions)
  1. : Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.0)
  2. : Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.1)
  3. : Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.2)
  4. : Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.4.0) current
2014-10-14 RIPE NCC + Registered Unresolved change Observed only
Statistics
57.0.0.0/8 not listed on 2014-10-13, assigned on 2014-10-14
Inventory
Inventory effect unknown

No transfer record matches. The RIPE NCC's statistics show it not listed on 2014-10-13 and assigned (dated 1993-06-21) on 2014-10-14. It wasn't in the RIPE NCC's statistics before, so it wasn't the RIPE NCC's unissued inventory; it may have come from another registry in a transfer not yet in the log.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 57.0.0.0/8 not listed on 2014-10-13, assigned on 2014-10-14 source · retrieved
  2. Before RIPE NCC delegated statistics 2014-10-13 (produced 2014-10-13T21:59:59+00:00), before the change: not listed source · retrieved
  3. After RIPE NCC delegated statistics 2014-10-14 (produced 2014-10-14T21:59:59+00:00), after the change: assigned (dated 1993-06-21) source · retrieved
Classification history for this change (4 versions)
  1. : Unresolved change, observed only (classifier 1.3.0)
  2. : Unresolved change, observed only (classifier 1.3.1)
  3. : Unresolved change, observed only (classifier 1.3.2)
  4. : Unresolved change, observed only (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-08-03RIPE NCC57.76.0.0/16Transfer logTransfer out of the RIPE NCC
2026-08-03ARIN57.76.0.0/16+ AddTransfer into ARIN
2026-08-03RIPE NCC57.100.0.0/16Transfer logTransfer out of the RIPE NCC
2026-08-03ARIN57.100.0.0/16+ AddTransfer into ARIN
2026-02-10APNIC57.206.0.0/23− DeregisteredRemoved
2024-01-25ARIN57.64.0.0/16+ AddTransfer into ARIN
2024-01-25RIPE NCC57.64.0.0/16Transfer logTransfer out of the RIPE NCC
2024-01-25ARIN57.75.0.0/16+ AddTransfer into ARIN
2024-01-25RIPE NCC57.75.0.0/16Transfer logTransfer out of the RIPE NCC
2024-01-25ARIN57.84.0.0/16+ AddTransfer into ARIN
2024-01-25RIPE NCC57.84.0.0/16Transfer logTransfer out of the RIPE NCC
2024-01-25ARIN57.88.0.0/15+ AddTransfer into ARIN
2024-01-25RIPE NCC57.88.0.0/15Transfer logTransfer out of the RIPE NCC
2024-01-25ARIN57.91.0.0/16+ AddTransfer into ARIN
2024-01-25RIPE NCC57.91.0.0/16Transfer logTransfer out of the RIPE NCC
2024-01-25ARIN57.94.0.0/16+ AddTransfer into ARIN
2024-01-25RIPE NCC57.94.0.0/16Transfer logTransfer out of the RIPE NCC
2024-01-25ARIN57.139.0.0/16+ AddTransfer into ARIN
2024-01-25RIPE NCC57.139.0.0/16Transfer logTransfer out of the RIPE NCC
2024-01-25ARIN57.246.0.0/16+ AddTransfer into ARIN
2024-01-25RIPE NCC57.246.0.0/16Transfer logTransfer out of the RIPE NCC
2024-01-25ARIN57.251.0.0/16+ AddTransfer into ARIN
2024-01-25RIPE NCC57.251.0.0/16Transfer logTransfer out of the RIPE NCC
2023-04-18ARIN57.134.128.0/17Transfer logMerger/acquisition
2022-12-20RIPE NCC57.206.0.0/23Transfer logTransfer out of the RIPE NCC
2022-12-20APNIC57.206.0.0/23Transfer logTransfer into APNIC
2022-08-23ARIN57.140.0.0/16+ AddTransfer into ARIN
2022-08-23RIPE NCC57.140.0.0/16Transfer logTransfer out of the RIPE NCC
2022-08-22ARIN57.180.0.0/14+ AddTransfer into ARIN
2022-08-22RIPE NCC57.180.0.0/14Transfer logTransfer out of the RIPE NCC
2022-08-22ARIN57.193.0.0/16+ AddTransfer into ARIN
2022-08-22RIPE NCC57.193.0.0/16Transfer logTransfer out of the RIPE NCC
2022-08-22ARIN57.196.0.0/16+ AddTransfer into ARIN
2022-08-22RIPE NCC57.196.0.0/16Transfer logTransfer out of the RIPE NCC
2022-08-22ARIN57.198.0.0/16+ AddTransfer into ARIN
2022-08-22RIPE NCC57.198.0.0/16Transfer logTransfer out of the RIPE NCC
2022-08-22ARIN57.201.0.0/16+ AddTransfer into ARIN
2022-08-22RIPE NCC57.201.0.0/16Transfer logTransfer out of the RIPE NCC
2022-08-22ARIN57.204.0.0/16+ AddTransfer into ARIN
2022-08-22RIPE NCC57.204.0.0/16Transfer logTransfer out of the RIPE NCC
2022-08-22ARIN57.248.0.0/16+ AddTransfer into ARIN
2022-08-22RIPE NCC57.248.0.0/16Transfer logTransfer out of the RIPE NCC
2022-07-18ARIN57.138.0.0/16+ AddTransfer into ARIN
2022-07-18RIPE NCC57.138.0.0/16Transfer logTransfer out of the RIPE NCC
2022-06-02RIPE NCC57.176.0.0/15Transfer logTransfer out of the RIPE NCC
2022-06-02APNIC57.176.0.0/15Transfer logTransfer into APNIC
2022-03-28ARIN57.135.0.0/16+ AddTransfer into ARIN
2022-03-28RIPE NCC57.135.0.0/16Transfer logTransfer out of the RIPE NCC
2022-02-09ARIN57.132.128.0/17+ AddTransfer into ARIN
2022-02-09RIPE NCC57.132.128.0/17Transfer logTransfer out of the RIPE NCC
2022-02-08ARIN57.132.0.0/17+ AddTransfer into ARIN
2022-02-08RIPE NCC57.132.0.0/17Transfer logTransfer out of the RIPE NCC
2022-02-03ARIN57.134.0.0/17+ AddTransfer into ARIN
2022-02-03RIPE NCC57.134.0.0/17Transfer logTransfer out of the RIPE NCC
2022-02-03ARIN57.134.128.0/17+ AddTransfer into ARIN
2022-02-03RIPE NCC57.134.128.0/17Transfer logTransfer out of the RIPE NCC
2018-01-04APNIC57.147.0.0/16− DeregisteredRemoved
2018-01-03APNIC57.147.0.0/16+ RegisteredUnresolved

Transfer records (56)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer57.76.0.0/16 Orange Business Communications Technology Limited RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.100.0.0/16 Orange Business Communications Technology Limited RIPE NCC(no name given) ARIN
ARINResource transfer57.76.0.0/16 Orange Business Communications Technology Limited RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.100.0.0/16 Orange Business Communications Technology Limited RIPE NCCAmazon.com, Inc. ARIN
RIPE NCCResource transfer57.64.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.75.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.84.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.88.0.0/15 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.91.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.94.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.139.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.246.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.251.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
ARINResource transfer57.64.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.75.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.84.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.88.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.89.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.91.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.94.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.139.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.246.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.251.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINMerger acquisition57.134.128.0/17 COGECO COMMUNICATIONS INC. ARINCogeco Connexion Inc. ARIN
RIPE NCCResource transfer57.206.0.0/23 SITA Switzerland Sarl RIPE NCC(no name given) APNIC
APNICResource transfer57.206.0.0/23 ORG-SSS101-RIPE RIPE NCCInterglobe Aviation Ltd. APNIC
RIPE NCCResource transfer57.140.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
ARINResource transfer57.140.0.0/16 SITA Switzerland Sarl RIPE NCCMENLO SECURITY, INC. ARIN
RIPE NCCResource transfer57.180.0.0/14 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.193.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.196.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.198.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.201.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.204.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.248.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
ARINResource transfer57.180.0.0/14 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.193.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.196.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.198.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.201.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.204.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
ARINResource transfer57.248.0.0/16 SITA Switzerland Sarl RIPE NCCAmazon.com, Inc. ARIN
RIPE NCCResource transfer57.138.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
ARINResource transfer57.138.0.0/16 SITA Switzerland Sarl RIPE NCCDobson Technologies - Transport and Telecom Solutions, LLC ARIN
RIPE NCCResource transfer57.176.0.0/15 Apple Inc RIPE NCC(no name given) APNIC
APNICResource transfer57.176.0.0/15 APPLE-MNT RIPE NCCChina Internet Network Information Center/AIPO-CN APNIC
RIPE NCCResource transfer57.135.0.0/16 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
ARINResource transfer57.135.0.0/16 SITA Switzerland Sarl RIPE NCCBlue Stream ARIN
RIPE NCCResource transfer57.132.128.0/17 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
ARINResource transfer57.132.128.0/17 SITA Switzerland Sarl RIPE NCCGrande Communications Networks, LLC ARIN
RIPE NCCResource transfer57.132.0.0/17 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
ARINResource transfer57.132.0.0/17 SITA Switzerland Sarl RIPE NCCWave Broadband ARIN
RIPE NCCResource transfer57.134.0.0/17 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
RIPE NCCResource transfer57.134.128.0/17 SITA Switzerland Sarl RIPE NCC(no name given) ARIN
ARINResource transfer57.134.128.0/17 SITA Switzerland Sarl RIPE NCCCOGECO COMMUNICATIONS INC. ARIN
ARINResource transfer57.134.0.0/17 SITA Switzerland Sarl RIPE NCCCogeco Connexion inc ARIN

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/57.0.0.0-57.255.255.255.json