Cellular Network Codes
Cellular Network Codes
Here's a list of the common cellular for the different country's and the Cellular networks in those countries.
Website to search for a specific code -
https://www.mcc-mnc.com
MCC (Country Code) /
MNC (Cellular Network Code)
USA
310/260 = T-Mobile
310/410 = AT&T
311/588 = US Cellular