Reference Data Rate Center Directory BROWNING, MT Rate Center BROWNING — MT Data last updated: March 10, 2026 LATA 648 State MT Area Codes 1 Exchanges (NXX) 2 Carriers 1 Coordinates 48.55761158224273, -113.0138646340774 Area Codes 406 Top Carriers Carrier OCN NXX Count SIYEH COMMUNICATIONS 619J 2
