rirtracker

IPv4 range · 2 prefixes · 5,120 addresses

151.216.0.0 - 151.216.19.255

151.216.0.0/20, 151.216.16.0/22

Now

RIPE NCC statistics
Assigned (dated 2026-06-02), reserved (SK), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

− Deregistered Removed (return, revocation or reclamation not publicly distinguishable)

Reported
2012-12-20 (RIPE NCC)
Confidence
Strong inference
Inventory
Possible future reissue candidate after hold

Hold

Removed
2012-12-20 (RIPE NCC)
Estimated hold end
Not estimated: the RIPE NCC's current hold applies to removals from 2014-03-26 on, and this one came earlier
Now
Possible reissue candidate; not confirmed available.

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.

2012-12-20 RIPE NCC − Deregistered Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Statistics
151.216.0.0 - 151.216.19.255 assigned on 2012-12-19, reserved on 2012-12-20
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 assigned (dated 2012-10-10) on 2012-12-19 and reserved on 2012-12-20. 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: 151.216.0.0 - 151.216.19.255 assigned on 2012-12-19, reserved on 2012-12-20 source · retrieved
  2. Before RIPE NCC delegated statistics 2012-12-19 (produced 2012-12-19T22:59:59+00:00), before the change: assigned (dated 2012-10-10) source · retrieved
  3. After RIPE NCC delegated statistics 2012-12-20 (produced 2012-12-20T22:59:59+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

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-11-02RIPE NCC151.216.16.0/21− DeregisteredRemoved
2026-10-23RIPE NCC151.216.16.0/21+ RegisteredApparent reissuance
2026-09-07RIPE NCC151.216.6.0/24− DeregisteredRemoved
2026-08-05RIPE NCC151.216.6.0/24+ RegisteredApparent reissuance
2026-07-21RIPE NCC151.216.5.0/24− DeregisteredRemoved
2026-07-20RIPE NCC151.216.8.0/21− DeregisteredRemoved
2026-07-14RIPE NCC151.216.5.0/24+ RegisteredApparent reissuance
2026-07-06RIPE NCC151.216.8.0/21+ RegisteredApparent reissuance
2026-06-02RIPE NCC151.216.4.0/24+ RegisteredApparent reissuance
2026-05-15RIPE NCC151.216.1.0/24− DeregisteredRemoved
2026-04-20RIPE NCC151.216.16.0/20− DeregisteredRemoved
2026-04-01RIPE NCC151.216.1.0/24+ RegisteredApparent reissuance
2026-03-24RIPE NCC151.216.2.0/23− DeregisteredRemoved
2026-03-17RIPE NCC151.216.16.0/20+ RegisteredApparent reissuance
2026-03-09RIPE NCC151.216.0.0/24− DeregisteredRemoved
2026-02-20RIPE NCC151.216.2.0/23+ RegisteredApparent reissuance
2026-02-16RIPE NCC151.216.0.0/24+ RegisteredApparent reissuance
2025-06-10RIPE NCC151.216.16.0/20− DeregisteredRemoved
2025-05-13RIPE NCC151.216.16.0/20+ RegisteredApparent reissuance
2025-04-22RIPE NCC151.216.0.0/20− DeregisteredRemoved
2025-03-24RIPE NCC151.216.0.0/20+ RegisteredApparent reissuance
2024-04-02RIPE NCC151.216.0.0/19− DeregisteredRemoved
2024-03-18RIPE NCC151.216.0.0/19+ RegisteredApparent reissuance
2023-10-30RIPE NCC151.216.0.0/22− DeregisteredRemoved
2023-09-29RIPE NCC151.216.0.0/22+ RegisteredApparent reissuance
2023-07-03RIPE NCC151.216.0.0/22− DeregisteredRemoved
2023-06-01RIPE NCC151.216.0.0/22+ RegisteredApparent reissuance
2023-01-02RIPE NCC151.216.4.0/22− DeregisteredRemoved
2022-12-20RIPE NCC151.216.16.0/20− DeregisteredRemoved
2022-12-16RIPE NCC151.216.4.0/22+ RegisteredApparent reissuance
2022-12-14RIPE NCC151.216.0.0/22− DeregisteredRemoved
2022-11-18RIPE NCC151.216.0.0/22+ RegisteredApparent reissuance
2022-10-21RIPE NCC151.216.8.0/21− DeregisteredRemoved
2022-09-30RIPE NCC151.216.8.0/21+ RegisteredApparent reissuance
2022-09-19RIPE NCC151.216.16.0/20+ RegisteredApparent reissuance
2022-09-05RIPE NCC151.216.2.0/24− DeregisteredRemoved
2022-08-29RIPE NCC151.216.4.0/23− DeregisteredRemoved
2022-08-18RIPE NCC151.216.16.0/20− DeregisteredRemoved
2022-08-15RIPE NCC151.216.8.0/21− DeregisteredRemoved
2022-08-04RIPE NCC151.216.0.0/23− DeregisteredRemoved
2022-08-02RIPE NCC151.216.16.0/20+ RegisteredApparent reissuance
2022-07-28RIPE NCC151.216.8.0/21+ RegisteredApparent reissuance
2022-07-11RIPE NCC151.216.0.0/23+ RegisteredApparent reissuance
2022-07-04RIPE NCC151.216.2.0/24+ RegisteredApparent reissuance
2022-07-04RIPE NCC151.216.6.0/24− DeregisteredRemoved
2022-07-01RIPE NCC151.216.3.0/24− DeregisteredRemoved
2022-06-07RIPE NCC151.216.2.0/24− DeregisteredRemoved
2022-05-31RIPE NCC151.216.6.0/24+ RegisteredApparent reissuance
2022-05-05RIPE NCC151.216.3.0/24+ RegisteredApparent reissuance
2022-05-04RIPE NCC151.216.2.0/24+ RegisteredApparent reissuance
2022-01-04RIPE NCC151.216.0.0/23− DeregisteredRemoved
2021-11-03RIPE NCC151.216.2.0/24− DeregisteredRemoved
2021-10-27RIPE NCC151.216.2.0/24+ RegisteredApparent reissuance
2021-10-25RIPE NCC151.216.16.0/21− DeregisteredRemoved
2021-09-27RIPE NCC151.216.16.0/21+ RegisteredApparent reissuance
2021-09-20RIPE NCC151.216.2.0/24− DeregisteredRemoved
2021-09-15RIPE NCC151.216.3.0/24− DeregisteredRemoved
2021-09-10RIPE NCC151.216.2.0/24+ RegisteredApparent reissuance
2021-08-31RIPE NCC151.216.8.0/21− DeregisteredRemoved
2021-08-26RIPE NCC151.216.4.0/23+ RegisteredApparent reissuance

Transfer records

No transfer log has a transfer of any part of this IPv4 range.

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/151.216.0.0-151.216.19.255.json