In March last year, T-Mobile US spent around $8 billion in the 600 MHz incentive auction, winning 1,525 10 megahertz licenses covering 414 of the 428 partial economic areas covered in the auction. The carrier said it won 45% of the spectrum sold with an average depth of 31 megahertz and at least 10 megahertz covering all of the U.S. and Puerto Rico. A little more than a year later, the so-called “Un-carrier” says it has activated its low-band holdings in more than 900 cities in 32 states.
