Mobile Country Code – MCC

An MCC is used in combination with an MNC (a combination known as an “MCC/MNC”) to uniquely identify a mobile network operator (carrier) using the GSM (including GSM-R), UMTS, LTE, and 5G public land mobile networks. Some but not all CDMA, iDEN, and satellite mobile networks are identified with an MCC/MNC tuple as well.

A table of these codes can be found here.