Ever since T-Mobile closed on its acquisition of MetroPCS, essentially combining the nation's fourth and fifth largest carriers, T-Mobile has discussed migration. It wants to move MetroPCS customers to its own GSM pipeline. With the Samsung Galaxy S4, customers in Atlanta; Boston; Dallas-Fort Worth; Hartford, Conn.; Las Vegas; New York City; Philadelphia and San Francisco will be buying a version of the phone that will run on T-Mobile's network. Expanded from an initial three city pilot program, MetroPCS customers in those markets have 5 phones to choose from that are designed for the parent operator's network.
This Wednesday, T-Mobile has a media event in New York City and is expected to announce that it will no longer sell new CDMA powered handsets for MetroPCS customers although it will support them until the end of 2015. But since 60% of MetroPCS customers upgrade to a new phone every year, it won't be too long until CDMA is no longer needed for the pre-paid carrier,except for the few malcontents that will stick with their old CDMA handset just to be different. And for those customers, T-Mobile can keep a small amount of spectrum on hand.
T-Mobile's plan is to turn MetroPCS into a national brand using T-Mobile nationwide GSM network. The faster that the migration is complete, the faster this can happen. Right now, T-Mobile is ahead of schedule.