Frequency Band Band number Radio Interface Generation Status Notes
850 MHz 5 GSM/GPRS/EDGE 2G Roaming Not operated by T-Mobile, except for CMA629 in SC after the acquisition of SunCom. Competitor 850 MHz networks are accessible via roaming agreements.
850 MHz CLR 5 UMTS/HSPA+ 3G Roaming Not operated by T-Mobile. After the failed acquisition of T-Mobile USA by AT&T, part of the failed acquisition was a 7-year AT&T 3G roaming agreement.
1900 MHz 2 GSM/GPRS/EDGE 2G In Service Most of this spectrum will be upgraded to 4G/LTE networks in the next two years. [60] (More Details See 4G LTE Upgrade) It is unclear if that means this network will be decommissioned anytime soon, but it is possible.
1700/2100 MHz AWS 4 UMTS/DC-HSPA 42Mbit/s 4G[68] In Service Has marketed 3G HSPA+ as "4G" since 2011. Covers 230 million+ POPs as of March, 2014. [60]
1900 MHz PCS 2 UMTS/HSPA+ 21Mbit/s 4G In Service/Building out HSPA+ 21Mbps on the 1900 band — this is due to the T-Mobile’s 1900MHz not being DC-HSDPA capable. Moving 3G HSPA+ traffic to this band.[69] Covers 203 million POPs as of Oct, 2013[70]
1700/2100 MHz AWS 4 LTE 4G In Service/Building out Covers 210 million POPs as of March, 2014[60]
700 MHz Block A 12 LTE 4G Rollout starts by Q4 2014 [59] Spectrum acquired from Verizon Wireless [71]
1900 MHz PCS 2 LTE 4G Rolling out in 2014 [72]