what is a carrier for a phone?
By Priya Viswanathan. Definition: A mobile carrier is one that provides connectivity services to mobile phone subscribers. Mobile carriers must acquire a radio spectrum license from the governing authority, in order to be able to operate in the region of their choice.y Priya Viswanathan. Definition: A mobile carrier is one that provides connectivity services to mobile phone subscribers. Mobile carriers must acquire a radio spectrum license from the governing authority, in order to be able to operate in the region of their choice.