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.
2026-11-09ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inferenceProvisional
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2027-05-09. 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 2021-12-16) on 2026-11-08 and reserved on 2026-11-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2027-05-09. This does not confirm availability. Since mid-2024, ARIN has released many ASNs within two months, before the 6 calendar months were up, so the release can come sooner.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS400309 assigned on 2026-11-09, reserved on 2026-11-10source · retrieved
BeforeARIN delegated statistics 2026-11-08 (produced 2026-11-08T14:00:21+00:00), before the report: assigned (dated 2021-12-16)source · retrieved
AfterARIN delegated statistics 2026-11-10 (produced 2026-11-10T14:00:21+00:00), after the report: reservedsource · retrieved
2025-07-09ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: LayerHost (ARIN) to Vault Host (ARIN)
From
LayerHost ARIN
To
Vault Host ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from LayerHost (ARIN) to Vault Host (ARIN) on 2025-07-09 15:54 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.
Evidence (3) · classifier 1.4.0,
Transfer logTransfer log: MERGER_ACQUISITION on 2025-07-09 15:54 UTC, LayerHost (ARIN) to Vault Host (ARIN); resources moved: AS400309source · retrieved
BeforeARIN delegated statistics 2025-07-08 (produced 2025-07-08T13:01:12+00:00), before the report: assigned (dated 2021-12-16)source · retrieved
AfterARIN delegated statistics 2025-07-10 (produced 2025-07-10T13:01:14+00:00), after the report: assigned (dated 2021-12-16)source · retrieved
2021-12-16ARIN+ AddApparent new issuanceStrong inference
ARIN-Issued
Add AS400309
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it available on 2021-12-15 and assigned (dated 2021-12-16) on 2021-12-17. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2021-12-16: "Add AS400309"source · retrieved
BeforeARIN delegated statistics 2021-12-15 (produced 2021-12-15T14:00:13+00:00), before the report: availablesource · retrieved
AfterARIN delegated statistics 2021-12-17 (produced 2021-12-17T14:00:12+00:00), after the report: assigned (dated 2021-12-16)source · retrieved
Classification history for this change (4 versions)
: Apparent new issuance, strong inference (classifier 1.3.0)
: Apparent new issuance, strong inference (classifier 1.3.1)
: Apparent new issuance, strong inference (classifier 1.3.2)
: Apparent new issuance, strong inference (classifier 1.4.0) current
Transfer records (1)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Merger acquisition
AS400309
LayerHost ARIN
Vault Host ARIN
Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this ASN (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
Looked up
Why
Registry
Handle
Organization
Status
Last changed
After 24 hours
ARIN
AS400309
Vault Host VH-184
active
2026-11-10
First seen
not registered (RDAP 404)
Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.