http://www.washingtonpost.com/blogs/the-switch/wp/2018/04/27/sprint-tmobile-merger/

T-Mobile and Sprint are reportedly nearing a merger deal that would combine the nation’s third- and fourth-largest wireless carriers, respectively — adding to a whirlwind of consolidation in the communications industry.

The proposed merger, which was first reported by Reuters, would give the resulting company control over roughly 100 million customers, edging out AT&T's 93 million and putting it within striking distance of Verizon’s roughly 116 million wireless customers. And it would reduce the number of national wireless operators from four to three at a time when Washington officials have voiced greater concern about corporate concentration.