US Cellular has reached an agreement with AT&T to sell a large chunk of its low- and mid-band radio frequency licenses to AT&T for just over $1 billion. The largest bundle of licenses is mid-band spectrum at 3.45 GHz, ideal for 5G and part of band 77. The remainder is 700 MHz spectrum ideal for broad coverage, part of band 12. AT&T already uses both bands in its network and phones. US Cellular also recently made deals with T-Mobile and Verizon, selling some spectrum to both, but also most of its mobile business to T-Mobile. Despite having sold significant radio spectrum licenses to all three national carriers, US Cellular is keeping some mmWave and C-band licenses.


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