Network
AS3557 ISC F-ROOT
- Autonomous system number
- AS3557
- Registered in
- US
- Registry
- ARIN
- ASN registered
- 1994-04-21
- IPv4 prefixes announced
- 2
- IPv6 prefixes announced
- 2
- Internet exchanges
- 0
- Data centres
- 0
- Company
- Internet Systems Consortium
Prefix counts from the global routing table as of 2026-10-05. Exchange and data-centre counts are what the network lists in PeeringDB. Company facts from Wikidata. Website: www.isc.org/f-root
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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