T-Mobile Carrier From
United States

The T-Mobile Carrier From United States is denoted by codes: 310 160, 310 200, 310 210, 310 220, 310 230, 310 240, 310 250, 310 260, 310 270, 310 310, 310 490, 310 660, 310 800. The followings IDs are called HNI (Home network identity). This code is created by the combination of two other Mobile Country Code (MCC) and Mobile Network Code (MNC). The first three numbers stand for the MCC and they are used in order to identify the region which the carried comes from (in the following example it’s United States). The last numbers of the HNI code are equal with the MNC and this ID is given for the specific mobile network operator.

Besides T-Mobile United States has assigned country code + 1. This number + 1 is equal with international calling code and it’s simply the telephone dialing prefixes used for calling T-Mobile numbers.
T-Mobile uses 1 GSM bands, 2 UMTS bands, 5 and 0 CDMA bands.. You can read the specific frequency bands in the table below. All bands of the T-Mobile are display in MHz units.
Another important information in T-Mobile United States architectures is the standard of used protocols. It also uses 7 protocols such as GSM, UMTS, LTE, CDMA. The ISO standard code of T-Mobile is US. You can see more info about this mobile network operator at http://www.t-mobile.com. How to check T-Mobile coverage? How to check if your phone will work in United States?