AS6614 — USCC-ASN

Network type: mobile

AS6614 announces 41 IPv4 prefixes covering 253,696 addresses and 0 IPv6 prefixes.

About this network

The mobile network of UScellular, the Chicago-area regional wireless carrier, registered under the handle USCC-ASN. T-Mobile USA completed its acquisition of UScellular's wireless operations in 2025 and is now the registrant of record.

What it's used for

• Addressing for wireless subscribers. The AS announces large blocks out of 166.0.0.0/8 mobile space, and reverse DNS on them still follows the …mobile.uscc.net pattern from the UScellular era.

Notable

• This is mobile carrier address space. Addresses are handed to phones and other cellular devices, rotate between subscribers, and are frequently shared behind carrier-grade NAT, so a single address maps poorly to a single user or place.
• Geolocation on mobile space is coarse by nature. UScellular's footprint covered much of the rural Midwest, Northwest, and New England.

Interesting

• The ASN is a mid-1990s ARIN allocation that has outlived the company it was issued to. The registrant is now T-Mobile USA, the handle still says USCC, and the reverse DNS still says uscc.net. The UScellular brand is being retired in phases, while the retained towers and spectrum went to a separate successor company.

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

Announced prefixes

• 165.27.240.0/21
• 166.181.0.0/17
• 166.181.128.0/19
• 166.181.176.0/20
• 166.181.192.0/18
• 166.182.6.0/23
• 166.182.80.0/21
• 166.182.88.0/23
• 166.182.241.0/24
• 166.182.242.0/23
• 166.182.244.0/24
• 166.182.248.0/21
• 166.224.0.0/17
• 166.224.128.0/18
• 166.225.0.0/16
• 198.8.10.0/23
• 198.8.12.0/24
• 198.8.14.0/23
• 198.227.0.0/19
• 198.227.32.0/20
• 198.227.48.0/21
• 198.227.56.0/24
• 198.227.58.0/23
• 198.227.62.0/23
• 198.227.64.0/18
• 198.227.128.0/19
• 198.227.160.0/20
• 198.227.176.0/21
• 198.227.184.0/22
• 198.227.188.0/24
• 198.227.190.0/23
• 198.227.192.0/19
• 198.227.224.0/21
• 198.227.232.0/22
• 198.227.236.0/23
• 198.227.239.0/24
• 198.227.240.0/21
• 198.227.248.0/24
• 198.227.250.0/23
• 198.227.252.0/22
• 198.230.224.0/20

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS7018 AT&T Enterprises, LLC
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS
• AS852 TELUS Communications Inc.

Downstream networks

• AS18933 T-Mobile USA, Inc.

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS2914 NTT America, Inc.
• AS18933 T-Mobile USA, Inc.
• AS6939 Hurricane Electric LLC
• AS7018 AT&T Enterprises, LLC
• AS852 TELUS Communications Inc.
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions

Internet exchanges

• Equinix Internet Exchange Ashburn — Ashburn, United States
• Equinix Internet Exchange Chicago — Chicago, United States
• Equinix Internet Exchange San Jose (Bay Area) — San Jose, United States
• Digital Realty Atlanta Internet Exchange — Atlanta, United States