CST Carrier From
Sao Tome and Principe

The CST Carrier From Sao Tome and Principe is denoted by codes: 626 01. 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 Sao Tome and Principe). The last numbers of the HNI code are equal with the MNC and this ID is given for the specific mobile network operator.

Besides CST Sao Tome and Principe has assigned country code + 239. This number + 239 is equal with international calling code and it’s simply the telephone dialing prefixes used for calling CST numbers.
CST uses 1 GSM bands, 1 UMTS bands, 0 and 0 CDMA bands.. You can read the specific frequency bands in the table below. All bands of the CST are display in MHz units.
Another important information in CST Sao Tome and Principe architectures is the standard of used protocols. It also uses 3 protocols such as GSM, UMTS, LTE, CDMA. The ISO standard code of CST is ST. You can see more info about this mobile network operator at https://www.cst.st/. How to check CST coverage? How to check if your phone will work in Sao Tome and Principe?