Autonomous System

AS18933 T-Mobile USA, Inc.

ISPActiveUnited StatesARIN

AS18933 (USCC-MPLS01) is an ISP network operated by T-Mobile USA, Inc. in United States, registered with ARIN. It has 12 IPv4 prefixes with 26,624 addresses, which makes it the 5,846th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses26,624in 12 prefixes
IPv6 prefixes0none
Size rank#5,846of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationT-Mobile USA, Inc.
AS nameUSCC-MPLS01
Websitet-mobile.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@t-mobile.com
Registered2007-04-17
Last updated2025-09-11

IPv4 prefixes

12 prefixes · 26,624 addresses
NetworkAddressesFirst – last address
166.224.192.0/198,192166.224.192.0 – 166.224.223.255
166.224.224.0/198,192166.224.224.0 – 166.224.255.255
166.181.160.0/204,096166.181.160.0 – 166.181.175.255
166.182.160.0/204,096166.182.160.0 – 166.182.175.255
165.27.248.0/24256165.27.248.0 – 165.27.248.255
165.27.253.0/24256165.27.253.0 – 165.27.253.255
198.227.57.0/24256198.227.57.0 – 198.227.57.255
198.227.60.0/24256198.227.60.0 – 198.227.60.255
198.227.61.0/24256198.227.61.0 – 198.227.61.255
198.227.189.0/24256198.227.189.0 – 198.227.189.255
198.227.238.0/24256198.227.238.0 – 198.227.238.255
198.227.249.0/24256198.227.249.0 – 198.227.249.255

IPv6 prefixes

No IPv6 prefixes.

Query AS18933 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS18933&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS18933, with or without a key:

curl "https://api.ipapi.is/?q=166.224.192.1"

Other networks of T-Mobile USA, Inc.

AS21928 T-Mobile USA, Inc.13,885,952 IPv4 addressesAS6614 T-Mobile USA, Inc.354,816 IPv4 addressesAS17133 T-Mobile USA, Inc.22,016 IPv4 addresses

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