The first-quarter earnings season is getting underway. For U.S. wireless carriers a big question is whether T-Mobile US (NYSE:TMUS) will officially surpass Sprint (NYSE: S) in terms of total subscribers to become the No. 3 U.S. carrier. Now that Nokia's (NYSE:NOK) $16.6 billion deal to acquire Alcatel-Lucent (NYSE: ALU) is official, how will their individual finances look? FierceWireless will be staying on top of all of that and more in the next few weeks as the major companies across the industry report their first-quarter earnings. Be sure to check back here frequently to stay updated on the financials and key metrics of the major players. Special report