rirtracker

ASN

AS52031

Now

RIPE NCC statistics
Available, in the latest file
Registry
RIPE NCC
Holder
None: it's in the registry's own pool
From
The RIPE NCC's latest statistics

Latest change

Released Released from hold (the RIPE NCC lists it as 'available')

Reported
2025-12-07 (RIPE NCC)
Confidence
Strong inference
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

Hold

Removed
2025-06-10 (RIPE NCC)
Estimated hold end
2025-12-07 (from the RIPE NCC's published rule; or later while it's still routed)
Released from hold
2025-12-07
Now
Possible reissue candidate; not confirmed available.

Timeline (6)

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.

2025-12-07 RIPE NCC Released Released from hold (the RIPE NCC lists it as 'available') Strong inference
Statistics
AS52031 reserved on 2025-12-06, available on 2025-12-07
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

The RIPE NCC's statistics show it reserved on 2025-12-06 and available on 2025-12-07. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-06-10, 180 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: AS52031 reserved on 2025-12-06, available on 2025-12-07 source · retrieved
  2. Before RIPE NCC delegated statistics 2025-12-06 (produced 2025-12-06T22:59:59+00:00), before the change: reserved source · retrieved
  3. After RIPE NCC delegated statistics 2025-12-07 (produced 2025-12-07T22:59:59+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
2025-06-10 RIPE NCC − Deregistered Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Statistics
AS52031 allocated on 2025-06-09, reserved on 2025-06-10
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2025-12-07. 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 2018-08-16) on 2025-06-09 and reserved on 2025-06-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed ASNs for 180 days (six months), or longer while still routed, before reissuing them, so the estimated hold end is 2025-12-07. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: AS52031 allocated on 2025-06-09, reserved on 2025-06-10 source · retrieved
  2. Before RIPE NCC delegated statistics 2025-06-09 (produced 2025-06-09T21:59:59+00:00), before the change: allocated (dated 2018-08-16) source · retrieved
  3. After RIPE NCC delegated statistics 2025-06-10 (produced 2025-06-10T21:59:59+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
2018-08-16 RIPE NCC + Registered Apparent reissuance of previously removed resource Strong inference
Statistics
AS52031 available on 2018-08-15, allocated on 2018-08-16
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2018-08-15 and allocated (dated 2018-08-16) on 2018-08-16. The tracker saw this range released from hold on 2018-08-14 (AS52031), 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: AS52031 available on 2018-08-15, allocated on 2018-08-16 source · retrieved
  2. Before RIPE NCC delegated statistics 2018-08-15 (produced 2018-08-15T21:59:59+00:00), before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2018-08-16 (produced 2018-08-16T21:59:59+00:00), after the change: allocated (dated 2018-08-16) 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
2018-08-14 RIPE NCC Released Released from hold (the RIPE NCC lists it as 'available') Strong inference
Statistics
AS52031 reserved on 2018-08-13, available on 2018-08-14
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

The RIPE NCC's statistics show it reserved on 2018-08-13 and available on 2018-08-14. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2018-02-15, 180 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: AS52031 reserved on 2018-08-13, available on 2018-08-14 source · retrieved
  2. Before RIPE NCC delegated statistics 2018-08-13 (produced 2018-08-13T21:59:59+00:00), before the change: reserved source · retrieved
  3. After RIPE NCC delegated statistics 2018-08-14 (produced 2018-08-14T21:59:59+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
2018-02-15 RIPE NCC − Deregistered Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Statistics
AS52031 allocated on 2018-02-14, reserved on 2018-02-15
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2018-08-14. 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 2010-12-17) on 2018-02-14 and reserved on 2018-02-15. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed ASNs for 180 days (six months), or longer while still routed, before reissuing them, so the estimated hold end is 2018-08-14. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: AS52031 allocated on 2018-02-14, reserved on 2018-02-15 source · retrieved
  2. Before RIPE NCC delegated statistics 2018-02-14 (produced 2018-02-14T22:59:59+00:00), before the change: allocated (dated 2010-12-17) source · retrieved
  3. After RIPE NCC delegated statistics 2018-02-15 (produced 2018-02-15T22:59:59+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
2010-12-18 RIPE NCC + Registered Apparent new issuance Strong inference
Statistics
AS52031 available on 2010-12-17, allocated on 2010-12-18
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2010-12-17 and allocated (dated 2010-12-17) on 2010-12-18. 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: AS52031 available on 2010-12-17, allocated on 2010-12-18 source · retrieved
  2. Before RIPE NCC delegated statistics 2010-12-17, before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2010-12-18, after the change: allocated (dated 2010-12-17) 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

Transfer records

No transfer log has a transfer of any part of this ASN.

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: asn/52031.json