rirtracker

IPv4 range · 2,048 addresses

91.108.184.0/21

Now

RIPE NCC statistics
Allocated (dated 2024-01-12), allocated (dated 2025-01-07) (CH, CZ, GB, IE, LT, NL, RU, TR), 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
2024-01-11 (RIPE NCC)
Confidence
Observed only
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.

2024-01-11 RIPE NCC Released Released from hold (the RIPE NCC lists it as 'available') Observed only
Statistics
91.108.184.0/21 reserved on 2024-01-10, available on 2024-01-11
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

The RIPE NCC's statistics show it reserved on 2024-01-10 and available on 2024-01-11. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2023-07-13, 182 days earlier. 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 (2024-01-12: Added 91.108.184.0/24; 2024-01-12: Added 91.108.185.0/24; 2024-01-12: Added 91.108.186.0/24), 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: 91.108.184.0/21 reserved on 2024-01-10, available on 2024-01-11 source · retrieved
  2. Before RIPE NCC delegated statistics 2024-01-10 (produced 2024-01-10T22:59:59+00:00), before the change: reserved source · retrieved
  3. After RIPE NCC delegated statistics 2024-01-11 (produced 2024-01-11T22:59:59+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
2023-07-13 RIPE NCC − Deregistered Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Statistics
91.108.184.0/21 allocated on 2023-07-12, reserved on 2023-07-13
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2024-01-09. 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 2012-06-18) on 2023-07-12 and reserved on 2023-07-13. 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 2024-01-09. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 91.108.184.0/21 allocated on 2023-07-12, reserved on 2023-07-13 source · retrieved
  2. Before RIPE NCC delegated statistics 2023-07-12 (produced 2023-07-12T21:59:59+00:00), before the change: allocated (dated 2012-06-18) source · retrieved
  3. After RIPE NCC delegated statistics 2023-07-13 (produced 2023-07-13T21:59:59+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
2012-06-18 RIPE NCC + Registered Apparent new issuance Strong inference
Statistics
91.108.184.0/21 available on 2012-06-17, allocated on 2012-06-18
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2012-06-17 and allocated (dated 2012-06-18) on 2012-06-18. 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: 91.108.184.0/21 available on 2012-06-17, allocated on 2012-06-18 source · retrieved
  2. Before RIPE NCC delegated statistics 2012-06-17 (produced 2012-06-17T21:59:59+00:00), before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2012-06-18 (produced 2012-06-18T21:59:59+00:00), after the change: allocated (dated 2012-06-18) 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 new issuance, strong inference (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-06-01RIPE NCC91.108.187.0/24Transfer logIntra-RIPE NCC transfer
2025-01-07RIPE NCC91.108.191.0/24+ RegisteredApparent reissuance
2025-01-06RIPE NCC91.108.191.0/24ReleasedHold released
2024-07-10RIPE NCC91.108.191.0/24− DeregisteredRemoved
2024-01-12RIPE NCC91.108.184.0/24+ RegisteredApparent reissuance
2024-01-12RIPE NCC91.108.185.0/24+ RegisteredApparent reissuance
2024-01-12RIPE NCC91.108.186.0/24+ RegisteredApparent reissuance
2024-01-12RIPE NCC91.108.187.0/24+ RegisteredApparent reissuance
2024-01-12RIPE NCC91.108.188.0/24+ RegisteredApparent reissuance
2024-01-12RIPE NCC91.108.189.0/24+ RegisteredApparent reissuance
2024-01-12RIPE NCC91.108.190.0/24+ RegisteredApparent reissuance
2024-01-12RIPE NCC91.108.191.0/24+ RegisteredApparent reissuance
2012-06-14RIPE NCC91.104.0.0 - 91.109.255.255ReleasedHold released

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer91.108.187.0/24 "EDGEAM" LLC RIPE NCCEdgeCenter LLC 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/91.108.184.0-91.108.191.255.json