Reference Data Rate Center Directory HARRISON, MT Rate Center HARRISON — MT Data last updated: March 10, 2026 LATA 648 State MT Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 45.70235106395731, -111.785208324716 Area Codes 406 Top Carriers Carrier OCN NXX Count 3 RIVERS TEL. COOP., INC. 2255 1
