Network
AS1 Level 3 Parent, LLC
- Autonomous system number
- AS1
- Registered in
- US
- Registry
- ARIN
- ASN registered
- 2001-09-20
- IPv4 prefixes announced
- 123
- IPv6 prefixes announced
- 0
- Internet exchanges
- Not listed in PeeringDB
- Data centres
- Not listed in PeeringDB
- Company
- Level 3 Communications
Prefix counts from the global routing table as of 2026-10-03. Not counted: 6 more prefixes this network originates that few routers see, inside address space AS3356 announces widely. Exchange and data-centre counts are what the network lists in PeeringDB. Company facts from Wikidata.
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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