Network
AS4991 Cogent Communications, LLC
- Autonomous system number
- AS4991
- Registered in
- US
- Registry
- ARIN
- ASN registered
- 1995-05-31
- IPv4 prefixes announced
- 1
- IPv6 prefixes announced
- 0
- Internet exchanges
- Not listed in PeeringDB
- Data centres
- Not listed in PeeringDB
Prefix counts from the global routing table as of 2026-10-03. Exchange and data-centre counts are what the network lists in PeeringDB. Website: cogentco.com
Upstreams and peers, traceroute paths through it, where it hands off to its transit providers, routing history and alerts - free with an account, and queryable from Claude, ChatGPT and other AI agents through the BGPScout MCP server.
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