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.
2026-10-15ARIN+ AddApparent reissuance of previously removed resourceObserved only
ARIN-Issued
Add AS401115
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it reserved on 2026-10-14 and assigned (dated 2026-10-15) on 2026-10-16. The tracker saw this range released from hold on 2026-10-14 (AS401115), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2026-10-14: Remove AS401115), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2026-10-15: "Add AS401115"source · retrieved
BeforeARIN delegated statistics 2026-10-14 (produced 2026-10-14T13:00:21+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2026-10-16 (produced 2026-10-16T13:00:20+00:00), after the report: assigned (dated 2026-10-15)source · retrieved
2026-10-14ARIN− RemoveChange to ARIN's own pool recordObserved only
ARIN-Issued
Remove AS401115
Inventory
Inventory effect unknown
ARIN's statistics show it reserved on 2026-10-13 and assigned (dated 2026-10-15) on 2026-10-15. ARIN removed its own pool record for this range and the range is now registered, but the same report doesn't list it as added. Another change to this range was reported the day before or after (2026-10-15: Add AS401115), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2026-10-14: "Remove AS401115"source · retrieved
BeforeARIN delegated statistics 2026-10-13 (produced 2026-10-13T13:00:21+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2026-10-15 (produced 2026-10-15T13:00:21+00:00), after the report: assigned (dated 2026-10-15)source · retrieved
Classification history for this change (2 versions)
: Change to ARIN's own pool record, observed only (classifier 1.4.0)
: Change to ARIN's own pool record, observed only (classifier 1.4.0) current
2025-10-06ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2026-04-06. 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 2024-05-30) on 2025-10-05 and reserved on 2025-10-07. 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 2026-04-06. 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: AS401115 assigned on 2025-10-06, reserved on 2025-10-07source · retrieved
BeforeARIN delegated statistics 2025-10-05 (produced 2025-10-05T13:00:49+00:00), before the report: assigned (dated 2024-05-30)source · retrieved
AfterARIN delegated statistics 2025-10-07 (produced 2025-10-07T13:00:46+00:00), after the report: reservedsource · retrieved
Classification history for this change (4 versions)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.4.0) current
2024-05-30ARIN+ AddApparent new issuanceStrong inference
ARIN-Issued
Add AS401115
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it available on 2024-05-29 and assigned (dated 2024-05-30) on 2024-05-31. 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 2024-05-30: "Add AS401115"source · retrieved
BeforeARIN delegated statistics 2024-05-29 (produced 2024-05-29T13:00:48+00:00), before the report: availablesource · retrieved
AfterARIN delegated statistics 2024-05-31 (produced 2024-05-31T13:00:50+00:00), after the report: assigned (dated 2024-05-30)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
No transfer log has a transfer of any part of this ASN.
RDAP lookups
Looked up
Why
Registry
Handle
Organization
Status
Last changed
After 7 days
ARIN
AS401115
ER Tech Pros LLC ETPL-6
active
2026-10-15
After 7 days
ARIN
AS401115
ER Tech Pros LLC ETPL-6
active
2026-10-15
After 24 hours
ARIN
AS401115
ER Tech Pros LLC ETPL-6
active
2026-10-15
After 24 hours
ARIN
AS401115
ER Tech Pros LLC ETPL-6
active
2026-10-15
First seen
ARIN
AS401115
ER Tech Pros LLC ETPL-6
active
2026-10-15
First seen
ARIN
AS401115
ER Tech Pros LLC ETPL-6
active
2026-10-15
Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.