Network
AS37891 JR TOKAI Information Systems Company
- Autonomous system number
- AS37891
- Registered in
- JP
- Registry
- APNIC
- ASN registered
- 2006-01-30
- IPv4 prefixes announced
- 8
- IPv6 prefixes announced
- 0
- Internet exchanges
- Not listed in PeeringDB
- Data centres
- Not listed in PeeringDB
- Internet users (estimate)
- ~123
Prefix counts from the global routing table as of 2026-10-05. Exchange and data-centre counts are what the network lists in PeeringDB. User estimate by APNIC Labs, 2026-09-30.
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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