T-Mobile US IP Ranges
T-Mobile US is a consumer and business internet provider. Its network is registered under AS21928 with ARIN, and it announces 269 IPv4 prefixes to the global routing table.
- Provider
- T-Mobile US
- Primary ASN
- AS21928
- Category
- ISP
- Headquarters
- Bellevue, WA, USA
- Announced IPv4 prefixes
- 269
- Registry
- ARIN
Known IP ranges
These prefixes are currently announced to the global routing table by AS21928 (T-MOBILE-AS21928 - T-Mobile USA, Inc.). Prefix sets change over time - use WHOIS Lookup for the authoritative record on any specific address.
100.128.0.0/9
162.160.0.0/11
172.32.0.0/11
162.184.0.0/15
172.58.0.0/15
74.60.0.0/16
65.76.0.0/16
172.56.0.0/16
167.20.0.0/16
162.191.0.0/16
2607:fb90::/28
2607:fb90::/32
2607:fb90:6c00::/38 (IPv6)
What does a T-Mobile US IP mean in a privacy test?
Seeing a T-Mobile US IP address as your visible address means you are connecting directly through your T-Mobile US line with no VPN active. If you expected a VPN exit, this tells you the tunnel is not carrying your traffic.
Related tools
Frequently asked questions
What IP ranges does T-Mobile US use?
T-Mobile US announces 269 IPv4 prefixes and 256 IPv6 prefixes under AS21928. Larger blocks include 100.128.0.0/9, 162.160.0.0/11, 172.32.0.0/11. The full current list is published by ARIN, and prefixes change as the network grows.
Why does a T-Mobile US IP appear in my privacy test?
Seeing a T-Mobile US IP address as your visible address means you are connecting directly through your T-Mobile US line with no VPN active. If you expected a VPN exit, this tells you the tunnel is not carrying your traffic.
How large is the T-Mobile US network?
AS21928 announces 269 IPv4 prefixes and 256 IPv6 prefixes. Registry data for the network is held by ARIN.
How do I look up a T-Mobile US IP address?
Enter the address in the MyIPScan IP Geolocation Lookup. Addresses in this network return AS21928 (T-MOBILE-AS21928 - T-Mobile USA, Inc.). WHOIS Lookup shows the registered CIDR block for any specific address.
What ASN does T-Mobile US use?
T-Mobile US operates AS21928, registered with ARIN and held by T-MOBILE-AS21928 - T-Mobile USA, Inc. In a privacy test this ASN is what identifies traffic as belonging to their network.