# U.S. Cellular

United States Cellular Corporation (doing business as UScellular and formerly known as U.S. Cellular) is an American mobile network operator. Its stock is publicly traded, but Telephone and Data Systems Inc. owns a controlling stake (83% economic and 96% voting power). The company was formed in 1983 and is headquartered in Chicago, Illinois. UScellular is the fifth largest wireless carrier in the United States, with 4.4 million subscribers in 21 states as of December 31, 2024.
In May 2024, T-Mobile US announced it would acquire UScellular's wireless customers and retail outlets, plus 30% of its wireless spectrum licenses in a deal worth $4.4 billion. Subsequently, UScellular announced that it had reached agreements to sell 55% of its remaining wireless spectrum license holdings for approximately $1 billion to AT&T and $1 billion to Verizon.

## History
### 1980s & 1990s

United States Cellular was founded as a subsidiary of Telephone and Data Systems Inc. (TDS) and incorporated on December 23, 1983. began operations in Knoxville, Tennessee (June), and Tulsa, Oklahoma (August). The company went public in 1988 where United States Cellular adopted USM as its ticker symbol on the American Stock Exchange. In 1999, United States Cellular relaunched under the “U.S. Cellular” brand name and image across all markets nationwide.

### 2000s

The company purchased PrimeCo Wireless Communications in 2002 and launched in the Chicago area on November 22. It built on this growth by signing Chicagoan Joan Cusack as national spokesperson. In January 2003, U.S. Cellular acquired naming rights to the baseball stadium used by the Chicago White Sox. Formerly known as Comiskey Park, the stadium was officially renamed U.S. Cellular Field (it was renamed Guaranteed Rate Field in 2016). That same year, U.S. Cellular and Cingular (now owned by AT&T Mobility) exchanged wireless assets and U.S. Cellular received new spectrum in markets of 13 states. In 2005, U.S. Cellular entered the St. Louis market, making it the second largest market U.S. Cellular served, after Chicago. In October 2008, U.S. Cellular launched Mobile Broadband, a service enabling customers to access data on its cell phones 10 times faster than before. It brought DSL-like service and capabilities to customers through EVDO (Evolution-Data Optimized) technology, commonly referred to as 3G. As of Q2 2008, U.S. Cellular was preparing to roll out 3G/EVDO revision A to select markets.

### 2010s

In May 2011, U.S. Cellular announced that it will offer 4G LTE. In a surprising move, U.S. Cellular announced the sale of several markets to Sprint Corporation including its home market of Chicago. June 2016, Google announced that it partnered with U.S. Cellular as part of its Google Fi service. U.S. Cellular contributed its network and LTE service to the "network of networks" along with T-Mobile US and Sprint Corporation.

### 2020s

In March 2020, U.S. Cellular debuted launch of 5G in Wisconsin and Iowa U.S. Cellular rebranded as UScellular and upgraded its logo in the fall of that year.
In February 2023, Google Fi discontinued its partnership with UScellular in a statement saying "We will no longer be an official network partner of Google Fi," UScellular senior manager of media relations Katie Frey told CNET over email. "We value our relationship with Google, and we look forward to continuing our collaboration in other ways."
In 2023, parent company TDS, announced that it was exploring strategic alternatives for UScellular.
In January 2024, UScellular shut down its 2G/3G CDMA network with the spectrum being reallocated to its 4G LTE and 5G NR networks.
On May 28, 2024, T-Mobile US announced its intention to acquire most of UScellular's wireless operations, including all of the company’s customers and stores, and 30% of UScellular's wireless spectrum in a transaction valued at USD 4.4 billion. While UScellular would retain 70% of its wireless spectrum and cell sites under the deal, T-Mobile would also be able to lease more than 2,000 towers from the company. Both companies expect the deal to close by mid-2025.

## Network
### 4G LTE network

U.S. Cellular began offering 4G LTE coverage to customers in the first quarter of 2012. The rollout started in cities in Iowa, Wisconsin, Maine, North Carolina, Texas and Oklahoma. In 2012, U.S. Cellular added 4G LTE in additional markets throughout the country.
Its LTE network was primarily built upon two low-frequency LTE bands; 12 and 5. Through an agreement with King Street Wireless, U.S. Cellular has access to the lower 700 MHz A, B, and C blocks across most of its markets. Spectrum bandwidth includes, 5*5, or 10*10 MHz on band 12 700 MHz 5*5 MHz on band 5 850 MHz 5*5, or 10*10 MHz on band 4 AWS 1. U.S. Cellular also has 5Mhz or 10Mhz of spectrum on Band 66 (AWS-3) in some markets.
The company began VoLTE trials during 2016, launched its first market with VoLTE during the first quarter of 2017.
In December 2019, the FCC found U.S. Cellular shared misinformation about its 4G LTE coverage, exaggerating performance by as much as 38% and only managing to reach the federally mandated minimum speeds 45% of the time.

### 5G network

In June 2019, U.S. Cellular successfully bid for high frequency spectrum in the Federal Communications Commission’s (FCC) Millimeter Wave Spectrum Auctions and purchased licenses covering 98 percent of its subscribers for $256.0 million or 1.7 cents per MHz pop. This laid the foundation for October 2019, when U.S. Cellular officially announced plans to launch its 5G service. The company launched its first phone with support, the Samsung Galaxy S20, as well as coverage maps for its first commercial 5G network in both urban and rural parts of Iowa and Wisconsin in February 2020.

### Roaming agreements

UScellular currently only has a roaming agreement with AT&T Mobility. This allows customers to roam on AT&T with LTE or 5G speeds with no extra charges.
Previously T-Mobile U.S. was used for LTE and 5G, but at the end of 2022 roaming service has been discontinued with them. UScellular also used Verizon for 1X and 3G roaming, but this has also since been discontinued as Verizon shut down its CDMA network at the end of 2022.

### Radio frequency summary

The following is a list of known LTE and 5G NR frequency bands which UScellular employs in the United States:
Frequency bands used on the UScellular Network :
| Frequency Band | Band Number | Protocol | Generation | Status | Notes |
| 600 MHz DD | 71 | LTE/LTE-A | 4G | Active/Building Out | Additional LTE band for coverage and capacity in select areas. |
| 700 MHz Lower A/B/C Blocks | 12 | LTE/LTE-A | 4G | Active | Primary LTE bands. |
| 850 MHz CLR | 5 | LTE/LTE-A | 4G | Active | Primary LTE bands. |
| 1.9 GHz PCS | 2 | LTE/LTE-A | 4G | Active | Additional LTE bands for capacity. |
| 1.7/2.1 GHz AWS | 4/66 | LTE/LTE-A | 4G | Active | Additional LTE bands for capacity. |
| 3.5 GHz CBRS | 48 | LTE/LTE-A | 4G | Active in select markets | Additional LTE bands for capacity. |
| 5.2 GHz U-NII | 46 | LTE/LTE-A | 4G | Active/Building Out | License assisted access (LAA). Additional capacity in select areas. |
| 600 MHz DD | n71 | NR | 5G | Active/Building Out | Primary low band for 5G NR network. |
| 2.5 GHz BRS/EBS | n41 | NR | 5G | Pending deployment | Spectrum acquired in 2022 auction. |
| 3.4 GHz C-Band | n77 | NR | 5G | Pending deployment | Spectrum acquired in 2021 auction. |
| 3.7 GHz C-band | n77 | NR | 5G | Pending deployment | Spectrum will be available for use starting December 2023. |
| 24 GHz K-Band | n258 | NR | 5G | Pending deployment | Spectrum acquired in 2019 auction. |
| 28 GHz Ka-Band | n261 | NR | 5G | Active/Building Out | Currently used for FWA services. |
| 39 GHz Ka-Band | n260 | NR | 5G | Active/Building Out | Currently used for FWA services. |

## Corporate sponsorship

UScellular owns the naming rights to:
* UScellular Soccer Complex, in Knoxville, Tennessee
* UScellular Connection Stage at Summerfest in Milwaukee, Wisconsin
Current Sponsorships:
* Presenting Sponsor of the Wisconsin State Fair
* Official Wireless Sponsor of the Milwaukee Brewers since 2008
* Official Wireless Partner of the Green Bay Packers since 2018
Official Wireless Provider and proud partner of:
* Iowa Hawkeyes (University of Iowa)
* Iowa State Cyclones (Iowa State University)
* WVU Mountaineers (West Virginia University)
* UMaine Black Bears (University of Maine)
The company formerly owned the naming rights to:
* U.S. Cellular Center in Cedar Rapids, Iowa – now Alliant Energy PowerHouse
* U.S. Cellular Grandstand at the Kansas State Fairgrounds in Hutchinson, Kansas – now Nex-Tech Wireless Grandstand
* U.S. Cellular Arena in Milwaukee – now UW–Milwaukee Panther Arena
* U.S. Cellular Field in Chicago – now Rate Field
* U.S. Cellular Center in Asheville, North Carolina – now Harrah's Cherokee Center
* U.S. Cellular Community Park in Medford, Oregon – now Lithia & Driveway Fields
UScellular had served as the presenting sponsor of the 80/35 Music Festival in Des Moines, Iowa. It also served as the title sponsor of a NASCAR Xfinity Series race until 2019, the U.S. Cellular 250, at Iowa Speedway in Newton, Iowa.

## Sound logo

The sonic logo, tag, audio mnemonic was produced by Musikvergnuegen and written by Walter Werzowa from the Austrian 1980s sampling band Edelweiss.