T-Mobile has expanded its 5G network and kept plan and phone prices down, but other premerger pledges are still unfulfilled.

Sprint and Nextel on Friday formally closed the merger they announced last Dec. 15, forming a mobile telecommunications behemoth called Sprint Nextel. Sprint and Nextel on Friday formally closed the ...

Verizon Wireless, a combination of Verizon Communications and Britain's Vodafone Group, is said to be considering making a bid for Sprint. Such a bid--if actually undertaken--would likely upset Sprint ...

Sprint will release its quarterly report on Tuesday, and investors have seen the shares go on a roller-coaster ride over the past several months as speculation swirls around a possible deal to merge ...