rirtracker

ASN

AS203504

This network elsewhere: its internet exchanges on IX Report · its routes on BGP Report

Now

RIPE NCC statistics
Allocated (dated 2025-11-24) (GB), in the latest file
Registry
RIPE NCC
Holder
Ipsos Comcon LLC
From
The RIPE NCC's latest statistics and the latest transfer record

Latest change

+ Registered Apparent reissuance of previously removed resource

Reported
2025-11-24 (RIPE NCC)
Confidence
Strong inference
Inventory
Likely issued from RIPE NCC-controlled inventory

Timeline (5)

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.

2025-11-24 RIPE NCC + Registered Apparent reissuance of previously removed resource Strong inference
Statistics
AS203504 available on 2025-11-23, allocated on 2025-11-24
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2025-11-23 and allocated (dated 2025-11-24) on 2025-11-24. The tracker saw this range released from hold on 2025-10-20 (AS203504), so it appears to have been issued again from the RIPE NCC's pool.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: AS203504 available on 2025-11-23, allocated on 2025-11-24 source · retrieved
  2. Before RIPE NCC delegated statistics 2025-11-23 (produced 2025-11-23T22:59:59+00:00), before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2025-11-24 (produced 2025-11-24T22:59:59+00:00), after the change: allocated (dated 2025-11-24) 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
2025-10-20 RIPE NCC Released Released from hold (the RIPE NCC lists it as 'available') Strong inference
Statistics
AS203504 reserved on 2025-10-19, available on 2025-10-20
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed

The RIPE NCC's statistics show it reserved on 2025-10-19 and available on 2025-10-20. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2025-04-23, 180 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: AS203504 reserved on 2025-10-19, available on 2025-10-20 source · retrieved
  2. Before RIPE NCC delegated statistics 2025-10-19 (produced 2025-10-19T21:59:59+00:00), before the change: reserved source · retrieved
  3. After RIPE NCC delegated statistics 2025-10-20 (produced 2025-10-20T21:59:59+00:00), after the change: available source · retrieved
Classification history for this change (4 versions)
  1. : Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.3.0)
  2. : Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.3.1)
  3. : Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.3.2)
  4. : Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.4.0) current
2025-04-23 RIPE NCC − Deregistered Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Statistics
AS203504 allocated on 2025-04-22, reserved on 2025-04-23
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2025-10-20. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2015-12-23) on 2025-04-22 and reserved on 2025-04-23. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed ASNs for 180 days (six months), or longer while still routed, before reissuing them, so the estimated hold end is 2025-10-20. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: AS203504 allocated on 2025-04-22, reserved on 2025-04-23 source · retrieved
  2. Before RIPE NCC delegated statistics 2025-04-22 (produced 2025-04-22T21:59:59+00:00), before the change: allocated (dated 2015-12-23) source · retrieved
  3. After RIPE NCC delegated statistics 2025-04-23 (produced 2025-04-23T21:59:59+00:00), after the change: 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
2018-08-10 RIPE NCC Transfer log Intra-RIPE NCC transfer Confirmed
Transfer log
Transfer: Verifield Ltd. (RIPE NCC) to Ipsos Comcon LLC (RIPE NCC)
From
Verifield Ltd. RIPE NCC
To
Ipsos Comcon LLC RIPE NCC
Inventory
No effect on RIPE NCC applicant inventory

The RIPE NCC's transfer log records a transfer from Verifield Ltd. (RIPE NCC) to Ipsos Comcon LLC (RIPE NCC) on 2018-08-10 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.

Evidence (3) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2018-08-10 19:00 UTC, Verifield Ltd. (RIPE NCC) to Ipsos Comcon LLC (RIPE NCC); resources moved: AS203504 source · retrieved
  2. Before RIPE NCC delegated statistics 2018-08-09 (produced 2018-08-09T21:59:59+00:00), before the change: allocated (dated 2015-12-23) source · retrieved
  3. After RIPE NCC delegated statistics 2018-08-10 (produced 2018-08-10T21:59:59+00:00), after the change: allocated (dated 2015-12-23) source · retrieved
Classification history for this change (4 versions)
  1. : Intra-RIPE NCC transfer, confirmed (classifier 1.3.0)
  2. : Intra-RIPE NCC transfer, confirmed (classifier 1.3.1)
  3. : Intra-RIPE NCC transfer, confirmed (classifier 1.3.2)
  4. : Intra-RIPE NCC transfer, confirmed (classifier 1.4.0) current
2015-12-23 RIPE NCC + Registered Apparent new issuance Strong inference
Statistics
AS203504 available on 2015-12-22, allocated on 2015-12-23
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2015-12-22 and allocated (dated 2015-12-23) on 2015-12-23. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: AS203504 available on 2015-12-22, allocated on 2015-12-23 source · retrieved
  2. Before RIPE NCC delegated statistics 2015-12-22 (produced 2015-12-22T22:59:59+00:00), before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2015-12-23 (produced 2015-12-23T22:59:59+00:00), after the change: allocated (dated 2015-12-23) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent new issuance, strong inference (classifier 1.3.0)
  2. : Apparent new issuance, strong inference (classifier 1.3.1)
  3. : Apparent new issuance, strong inference (classifier 1.3.2)
  4. : Apparent new issuance, strong inference (classifier 1.4.0) current

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transferAS203504 Verifield Ltd. RIPE NCCIpsos Comcon LLC RIPE NCC

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

Not looked up. The tracker queries RDAP for changes as they're reported (on first sight, after 24 hours and after seven days); older changes aren't looked up because today's RDAP says nothing about the past.

This page as data: asn/203504.json