GP Mobile is a premiere agent that owns & operates T-Mobile locations in 25 states. Headquartered in Dallas, TX, GP Mobile operates 563 T-Mobile stores in 25 states and 416 cities. GP Mobile is a subsidiary of Sun Holdings LLC. Sun Holdings is one of the most influential franchise operations in the nation. In addition to GP Mobile, Sun Holdings LLC operates Taco Bueno, Burger King, Popeyes, Arby’s, Golden Corral, and more!