Sprint Corporation

Sprint Corporation (which did business as Sprint) was an American telecommunications company. Before being acquired by T-Mobile US on April 1, 2020, it was the fourth-largest mobile network operator in the United States, serving 54.3 million customers as of June 30, 2019. The company also offered wireless voice, messaging, and broadband services through its various subsidiaries under the Boost Mobile and Open Mobile brands and wholesale access to its wireless networks to mobile virtual network operators.

In July 2013, a majority of the company was purchased by the Japanese telecommunications company SoftBank Group. Sprint used CDMA, EvDO and 4G LTE networks, and formerly operated iDEN, WiMAX, and 5G NR networks. Sprint was incorporated in Kansas.

Sprint traced its origins to the Brown Telephone Company, which was founded in 1899 to bring telephone service to the rural area around Abilene, Kansas. In 2006, Sprint left the local landline telephone business and spun those assets off into a new company named Embarq, which later became a part of Lumen Technologies under the CenturyLink brand, which remains one of the largest long-distance providers in the United States.

Until 2005, the company was also known as the Sprint Corporation, but took the name Sprint Nextel Corporation when it merged with Nextel Communications and adopted its black and yellow color scheme, along with a new logo. In 2013, following the shutdown of the Nextel network and concurrent with the acquisition by SoftBank, the company resumed using the name Sprint Corporation. In July 2013, as part of the SoftBank transactions, Sprint acquired the remaining shares of the wireless broadband carrier Clearwire Corporation that it did not already own.

In August 2014, CEO Dan Hesse was replaced by Marcelo Claure. In May 2018, Michel Combes replaced Claure, and had been working to get Sprint's acquisition by its rival T-Mobile through regulatory proceedings.

On April 1, 2020, Sprint Corporation completed their acquisition by T-Mobile US, which effectively made Sprint a subsidiary of T-Mobile until the Sprint brand officially discontinued in the beginning of August. Leadership, background, and stock changes happened immediately, with customer-side changes happening over time. The Sprint brand officially discontinued on August 2, 2020. Billing was already showing the T-Mobile brand, and on this date all retail, customer service, and all other company branding switched to the T-Mobile brand. New rate plans were also introduced as well for all new and existing customers from both companies, though all will be grandfathered into their current plan for at least 3 years should they choose not to switch to a new T-Mobile plan. Customers with Sprint accounts were fully migrated to T-Mobile in the summer of 2023 officially discontinuing the Sprint brand.