AS21928 T-MOBILE-AS21928 - T-Mobile USA, Inc.
🇺🇸ARINassigned
Announced Prefixes (BGP)
546total
288 IPv4258 IPv6
IPv4 Addresses
Allocated (RIR)12.9M
Announced (BGP)14.0M
IPv6 Addresses
Allocated (RIR)1.2×10³⁰
Announced (BGP)1.4×10³⁰
Prefix Limit (IPv4)
20,000
Prefix Limit (IPv6)
1,000
Country
🇺🇸 USRIR
ARINStatus
assigned
Allocated
2002-06-12
Announced Prefixes
(BGP)546|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARIN | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 |
1-10 of 546
1 / 55
Allocated Prefixes
(RIR)13Prefix | Country | RIR | Status |
|---|---|---|---|
| 65.76.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 66.94.0.0/19 | 🇺🇸 US | ARIN | allocated |
| 72.250.0.0/17 | 🇺🇸 US | ARIN | allocated |
| 74.60.0.0/15 | 🇺🇸 US | ARIN | allocated |
| 100.128.0.0/9 | 🇺🇸 US | ARIN | allocated |
| 104.152.20.0/22 | 🇺🇸 US | ARIN | allocated |
| 162.160.0.0/11 | 🇺🇸 US | ARIN | allocated |
| 167.20.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 172.32.0.0/11 | 🇺🇸 US | ARIN | allocated |
| 174.141.208.0/20 | 🇺🇸 US | ARIN | allocated |
1-10 of 13
1 / 2
All 546 announced prefixes of AS21928 →
BGP Neighbours
(seen in AS paths)Upstreams (11)
Networks AS21928 hands its own prefixes to: transit providers, or peers at an exchange.
- AS6939Hurricane Electric185
- AS174Cogent Communications139
- AS4637ASN TELSTRA GLOBAL Telstra Global122
- AS3356Level 3 Parent58
- AS6461Zayo Bandwidth33
- AS137409GSLNETWORKS AP GSL Networks Pty3
- AS52468UFINET PANAMA S.A2
- AS4766KIXS KR Korea Telecom1
- AS7922Comcast Cable Communications1
- AS58453CMI INT HK China Mobile International Limited1
- AS60068CDN77 Datacamp Limited1
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS21928 should publish an ASPA object
- IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/21928Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/21928" | jq