rirtracker

ASN

AS605

Now

ARIN statistics
Assigned (dated 2009-07-21) (US), in the latest file
Registry
ARIN
Holder
Vanguard Health Management, Inc. VANGU-18
From
RDAP, looked up 2026-11-10 18:26 UTC

Latest change

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

Reported
2020-05-11 (ARIN)
Confidence
Strong inference
Inventory
Possible future reissue candidate after hold

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.

2020-05-11 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 2020-11-11. 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 2009-07-21) on 2020-05-10 and reserved on 2020-05-12. 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 2020-11-11. 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: AS605 assigned on 2020-05-11, reserved on 2020-05-12 source · retrieved
  2. Before ARIN delegated statistics 2020-05-10 (produced 2020-05-10T14:00:13+00:00), before the report: assigned (dated 2009-07-21) source · retrieved
  3. After ARIN delegated statistics 2020-05-12 (produced 2020-05-12T14:00:13+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
2015-05-12 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 2015-11-12. 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 2009-07-21) on 2015-05-11 and reserved on 2015-05-13. 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 2015-11-12. 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: AS605 assigned on 2015-05-12, reserved on 2015-05-13 source · retrieved
  2. Before ARIN delegated statistics 2015-05-11 (produced 2015-05-11T05:05:08+00:00), before the report: assigned (dated 2009-07-21) source · retrieved
  3. After ARIN delegated statistics 2015-05-13 (produced 2015-05-13T05:04:59+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

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

RDAP lookups

Looked upWhyRegistryHandleOrganizationStatusLast changed
Watch list ARINAS605Vanguard Health Management, Inc. VANGU-18active2020-05-14
Watch list ARINAS605Vanguard Health Management, Inc. VANGU-18active2020-05-14
Watch list ARINAS605Vanguard Health Management, Inc. VANGU-18active2020-05-14
Watch list ARINAS605Vanguard Health Management, Inc. VANGU-18active2020-05-14
Watch list ARINAS605Vanguard Health Management, Inc. VANGU-18active2020-05-14
Watch list ARINAS605Vanguard Health Management, Inc. VANGU-18active2020-05-14
Watch list ARINAS605Vanguard Health Management, Inc. VANGU-18active2020-05-14

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/605.json