Network
AS21928 T-Mobile USA, Inc.
- Autonomous system number
- AS21928
- Registered in
- US
- Registry
- ARIN
- ASN registered
- 2002-06-12
- IPv4 prefixes announced
- 283
- IPv6 prefixes announced
- 257
- Internet exchanges
- 10
- Data centres
- 16
- Internet users (estimate)
- ~18,610,132
- Company
- T-Mobile US - 38,000 employees
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. Company facts from Wikidata. Website: www.t-mobile.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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