Autonomous system
AS6614 USCC-ASN
Mobile ARIN Cable/DSL/ISP
Summary
UScellular (T-Mobile USA)
mobile isp legacy
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
166.0.0.0/8mobile space, and reverse DNS on them still follows the…mobile.uscc.netpattern 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 saysuscc.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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 4 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.237.91 |
| Equinix Internet Exchange Chicago | Chicago, United States | 208.115.136.47 |
| Equinix Internet Exchange San Jose (Bay Area) | San Jose, United States | 206.223.116.167 |
| Digital Realty Atlanta Internet Exchange | Atlanta, United States | 206.126.110.123 |
Transit providers
7 upstream, 1 downstream and 8 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 44 prefixes · 254K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 44 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6614- Registry name
- USCC-ASN
- Registrant
- T-Mobile USA, Inc.
- Abuse contact
- abuse@t-mobile.com
- Registered
- 1995-06-05
- Last changed
- 2025-09-11
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- U.S. Cellular
- Also known as
- United States Cellular, USCC
- Network type
- Cable/DSL/ISP
- Scope
- North America
- Traffic ratio
- Heavy Inbound
- Peering policy
- Selective
- IRR as-set
AS-USCC-PERIMETER- Present at
- 5 exchanges
- Facilities
- 4 facilities
- Website
- http://www.uscellular.com
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 53 with no ROA
- ROAs
- 0 authorising AS6614
- ASPA
- no ASPA record
- IRR
- 100% registered · 53 of 53 announcements
- Route objects
- 67 naming AS6614
Reputation
Classification and threat
Mobile Cellular carrier. Addresses are shared by many handsets via CGNAT.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 448 networks and 1,851 prefixes, as published 2026-10-29. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere