In a concerted effort to bridge the digital divide and strengthen its leading market position, T-Mobile US Inc. (TMUS) has inked a definitive agreement with United States Cellular Corporation (USM) to acquire substantially all of the latter’s wireless operations along with 30% of its spectrum assets across several spectrum bands.T-Mobile will pay an aggregate of $4.4 billion, including a combination of cash and up to approximately $2 billion of assumed debt. The transaction is likely to close midway next ye ...