AS4004 COGENT-4000 - Cogent Communications, LLC
Announced Prefixes (BGP)
0total
0 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)0
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
5
Allocated
-
No prefixes found for this ASN.
BGP Neighbours
(seen in AS paths)Downstreams (1)
Networks whose own prefixes AS4004 passes on: usually its customers.
- AS51964ORANGE BUSINESS SERVICES IPSN ASN ORANGE BUSINESS SERVICES U.S26
Transfer History
Registry transfers of AS4004 between organisations.
- AS4000-AS4005M&A ·
- AS4000-AS4005M&A ·
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS4004 should publish an ASPA object
- IPv4 transfer marketTransfers published by all five RIRs
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/4004Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/4004" | jq