USM United States Cellular Corporation
USM was the NYSE ticker symbol of United States Cellular Corporation. It no longer appears in current US listing files, which usually means the security was delisted, acquired, merged, or moved to a new symbol. SEC records list “United States Cellular Corp” as a former name of Array Digital Infrastructure, Inc., which trades today as AD, UZD, UZE, UZF.
USM at a glance
- Symbol
- USM
- Company / issuer
- United States Cellular Corporation
- Security type
- Common stock
- Last exchange
- NYSE
- Status
- No longer listed
- Seen in listing files
- Apr 2015 – Jul 2025
- Sector
- Telecommunications
- Industry
- Telecommunications Equipment
- Country
- United States
- IPO year
- 1988
- Last reported market cap
- $6.1 billion (Jul 2025)
USM ticker history
All listing names we have recorded under the symbol USM, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| United States Cellular Corporation | Common Stock | Apr 2015 | Jul 2025 |
Snapshots have gaps (notably 2018–2021, and 2015–2021 for NYSE listings), so the actual delisting date may be later than the last-seen date.
Other symbols for United States Cellular Corporation
Frequently asked questions
What company has the ticker symbol USM?
USM was the ticker symbol of United States Cellular Corporation on NYSE.
Is USM still trading?
No. USM does not appear in current US exchange listings as of Sep 2026; it was last seen in our listing snapshots in Jul 2025. The company now appears to trade as AD, UZD, UZE, UZF (Array Digital Infrastructure, Inc.).
Which exchange was USM listed on?
USM was listed on NYSE.