Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS1239

No announcement in snapshotARIN

Cogent Communications, LLC · COGENT-1239

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/11/2026, 11:47:10Snapshot expired

View network topology RDAP registration

ASN: AS1239
Registration country: United States
Name: Cogent Communications, LLC
Abbreviation: COGENT-1239
Registration date: 3/25/1991, 05:00:00
Status: No announcement in snapshot
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	ASN registration country	Observation window start	Latest observation	IPv4	IPv6	Status
AS8151Upstream · observed weight 2	AS8151 - UNINETNetwork relationship data	Mexico	8/19/2019, 00:00:00	10/11/2026, 00:00:00	✓3	×	Currently observed

Relationships are observed AS_PATH adjacencies. Coverage is partial; direction does not establish a commercial relationship.

Registration and sources

Organization: Cogent Communications, LLC
RIR: ARIN
Registration country: United States
Registration date: 3/25/1991, 05:00:00
Abuse contact: abuse@cogentco.com

Snapshot trend

10/11/2026, 11:47:100 v40 v61 Upstream · 0 Uncertain

10/10/2026, 05:22:010 v40 v60 Upstream · 0 Uncertain

9/29/2026, 07:45:320 v40 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn