AS18933 — USCC-MPLS01 - T-Mobile USA, Inc.

AS18933 announces 11 IPv4 prefixes covering 27,648 addresses and 0 IPv6 prefixes.

About this network

The AS handle USCC-MPLS01 is held by T-Mobile USA, Inc.

What it's used for

• The address space carries mobile cellular traffic, evidenced by reverse DNS entries such as 0-208-224-166.mobile.uscc.net and the netname USL-63.
• The AS announces 82,944 IPv4 addresses across 27 prefixes with only 1 observed neighbour, a ratio characteristic of a large access or eyeball network rather than a transit provider.

Notable

• All registrants for the largest prefixes are listed as T-Mobile USA, Inc., matching the AS holder.
• The address inventory is heavily subdivided into /19, /20, and /22 blocks, primarily within the 166.182.0.0/16 and 166.224.192.0/18 ranges, reflecting site-by-site segmentation of a corporate mobile estate.
• T-Mobile USA was formerly known as VoiceStream Wireless, rebranded in 2002 following its acquisition by Deutsche Telekom.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 165.27.240.0/22
• 165.27.248.0/24
• 165.27.253.0/24
• 166.181.160.0/20
• 166.182.160.0/20
• 166.224.192.0/18
• 198.227.57.0/24
• 198.227.60.0/23
• 198.227.189.0/24
• 198.227.238.0/24
• 198.227.249.0/24

Upstream networks

• AS6614 T-Mobile USA, Inc.

Adjacent networks

• AS6614 T-Mobile USA, Inc.

Routing security

• RPKI: 0 valid, 0 invalid and 14 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.