rirtracker

ASN

AS18549

Now

ARIN statistics
Assigned (dated 2023-01-11) (US), in the latest file
Registry
ARIN
Holder
Vault Host VH-184
From
RDAP, looked up 2026-11-11 18:20 UTC

Latest change

Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable)

Reported
2026-11-09 (ARIN)
Confidence
Strong inference Provisional
Inventory
Possible future reissue candidate after hold

Timeline (8)

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.

2026-11-09 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference Provisional
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 2023-01-11) 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,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS18549 assigned on 2026-11-09, reserved on 2026-11-10 source · retrieved
  2. Before ARIN delegated statistics 2026-11-08 (produced 2026-11-08T14:00:21+00:00), before the report: assigned (dated 2023-01-11) source · retrieved
  3. After ARIN delegated statistics 2026-11-10 (produced 2026-11-10T14:00:21+00:00), after the report: reserved source · retrieved
2025-07-09 ARIN Transfer log Merger/acquisition or reorganization Confirmed
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,
  1. Transfer log Transfer log: MERGER_ACQUISITION on 2025-07-09 15:54 UTC, LayerHost (ARIN) to Vault Host (ARIN); resources moved: AS18549 source · retrieved
  2. Before ARIN delegated statistics 2025-07-08 (produced 2025-07-08T13:01:12+00:00), before the report: assigned (dated 2023-01-11) source · retrieved
  3. After ARIN delegated statistics 2025-07-10 (produced 2025-07-10T13:01:14+00:00), after the report: assigned (dated 2023-01-11) source · retrieved
2023-01-11 ARIN + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add AS18549
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2023-01-10 and assigned (dated 2023-01-11) on 2023-01-12. The tracker saw this range released from hold on 2023-01-09 (AS18549), so it appears to have been issued again from ARIN's pool.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2023-01-11: "Add AS18549" source · retrieved
  2. Before ARIN delegated statistics 2023-01-10 (produced 2023-01-10T14:00:11+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2023-01-12 (produced 2023-01-12T14:00:10+00:00), after the report: assigned (dated 2023-01-11) 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
2023-01-09 ARIN − Remove Released from hold (ARIN lists it as 'available') Strong inference
ARIN-Issued
Remove AS18549
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed

ARIN's statistics show it reserved on 2023-01-08 and available on 2023-01-10. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2020-06-08, 945 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2023-01-09: "Remove AS18549" source · retrieved
  2. Before ARIN delegated statistics 2023-01-08 (produced 2023-01-08T14:00:11+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2023-01-10 (produced 2023-01-10T14:00:11+00:00), after the report: available source · retrieved
Classification history for this change (4 versions)
  1. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.0)
  2. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.1)
  3. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.2)
  4. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.4.0) current
2020-06-08 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2020-12-08. 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 2019-01-18) on 2020-06-07 and reserved on 2020-06-09. 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 2020-12-08. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS18549 assigned on 2020-06-08, reserved on 2020-06-09 source · retrieved
  2. Before ARIN delegated statistics 2020-06-07 (produced 2020-06-07T14:00:13+00:00), before the report: assigned (dated 2019-01-18) source · retrieved
  3. After ARIN delegated statistics 2020-06-09 (produced 2020-06-09T14:00:13+00:00), after the report: 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
2019-01-18 ARIN + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add AS18549
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it reserved on 2019-01-17 and assigned (dated 2019-01-18) on 2019-01-19. The tracker saw this range removed from registration on 2018-06-12 (AS18549), so it appears to have been issued again from ARIN's pool.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2019-01-18: "Add AS18549" source · retrieved
  2. Before ARIN delegated statistics 2019-01-17 (produced 2019-01-17T06:00:17+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2019-01-19 (produced 2019-01-19T06:00:16+00:00), after the report: assigned (dated 2019-01-18) 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 reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2019-01-18 ARIN − Remove Change to ARIN's own pool record Strong inference
ARIN-Issued
Remove AS18549
Inventory
Part of the issuance reported the same day

ARIN's statistics show it reserved on 2019-01-17 and assigned (dated 2019-01-18) on 2019-01-19. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS18549. The issuance is explained on that line.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2019-01-18: "Remove AS18549" source · retrieved
  2. Before ARIN delegated statistics 2019-01-17 (produced 2019-01-17T06:00:17+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2019-01-19 (produced 2019-01-19T06:00:16+00:00), after the report: assigned (dated 2019-01-18) source · retrieved
Classification history for this change (4 versions)
  1. : Change to ARIN's own pool record, strong inference (classifier 1.3.0)
  2. : Change to ARIN's own pool record, strong inference (classifier 1.3.1)
  3. : Change to ARIN's own pool record, strong inference (classifier 1.3.2)
  4. : Change to ARIN's own pool record, strong inference (classifier 1.4.0) current
2018-06-12 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2018-12-12. 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 2009-01-16) on 2018-06-11 and reserved on 2018-06-13. 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 2018-12-12. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS18549 assigned on 2018-06-12, reserved on 2018-06-13 source · retrieved
  2. Before ARIN delegated statistics 2018-06-11 (produced 2018-06-11T05:00:25+00:00), before the report: assigned (dated 2009-01-16) source · retrieved
  3. After ARIN delegated statistics 2018-06-13 (produced 2018-06-13T05:00:23+00:00), after the report: 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

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisitionAS18549 LayerHost ARINVault 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 upWhyRegistryHandleOrganizationStatusLast changed
After 24 hours ARINAS18549Vault Host VH-184active2026-11-10
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.

This page as data: asn/18549.json