T-Mobile intends to shutter MetroPCS' legacy CDMA network by late June, according to information on the carrier's web site. The company recently said it had three major metro markets -- and about 500,000 customers -- still using its CDMA network. Moreover, MetroPCS parent company T-Mobile said a total CDMA network shutdown wasn't planned until the end of the year. Now, MetroPCS' web site says all customers need to transition to its GSM/LTE network by June 21, after which "phones operating on MetroPCS' legacy network ... are not guaranteed to have service." T-Mobile has already refarmed approximately 80% of MetroPCS' legacy CDMA spectrum for its own LTE 4G service. MetroPCS said customers with older phones can turn in their handsets for credit towards new devices compatible with its LTE network. T-Mobile acquired MetroPCS and has aggressively moved Metro's customers to its own network.


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