rirtracker

ASN

AS55400

Now

APNIC statistics
Reserved, in the latest file
Registry
APNIC
Holder
Not known
From
RDAP, looked up 2026-11-04 18:19 UTC

Latest change

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

Reported
2026-10-28 (APNIC)
Confidence
Strong inference
Inventory
Possible future reissue candidate after hold

Hold

Removed
2026-10-28 (APNIC)
Estimated hold end
2027-10-28 (from what APNIC's statistics show; it publishes no period)
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.

2026-10-28 APNIC − Deregistered Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Statistics
AS55400 allocated on 2026-10-28, reserved on 2026-10-29
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2027-10-28. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2010-01-28) on 2026-10-28 and reserved on 2026-10-29. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned ASNs a year after the removal or later since 2014, so the tracker estimates the hold ends on 2027-10-28. That is what APNIC has done, not a rule it states. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing APNIC's daily statistics: AS55400 allocated on 2026-10-28, reserved on 2026-10-29 source · retrieved
  2. Before APNIC delegated statistics 2026-10-28, before the change: allocated (dated 2010-01-28) source · retrieved
  3. After APNIC delegated statistics 2026-10-29, after the change: reserved source · retrieved
2010-01-28 APNIC + Registered Unresolved change Observed only
Statistics
AS55400 not listed on 2010-01-28, allocated on 2010-01-29
Inventory
Inventory effect unknown

No transfer record matches. APNIC's statistics show it not listed on 2010-01-28 and allocated (dated 2010-01-28) on 2010-01-29. It wasn't in APNIC's statistics before, so it wasn't APNIC'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 APNIC's daily statistics: AS55400 not listed on 2010-01-28, allocated on 2010-01-29 source · retrieved
  2. Before APNIC delegated statistics 2010-01-28, before the change: not listed source · retrieved
  3. After APNIC delegated statistics 2010-01-29, after the change: allocated (dated 2010-01-28) 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

Transfer records

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

RDAP lookups

Looked upWhyRegistryHandleOrganizationStatusLast changed
After 7 days APNICAS55296 - AS56319administrative2009-09-03
After 24 hours APNICAS55296 - AS56319administrative2009-09-03
First seen APNICAS55296 - AS56319administrative2009-09-03

Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.

This page as data: asn/55400.json