Reference Data Rate Center Directory WINIFRED, MT Rate Center WINIFRED — MT Data last updated: March 10, 2026 LATA 648 State MT Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 47.55888270165385, -109.3774881966616 Area Codes 406 Top Carriers Carrier OCN NXX Count TRIANGLE TEL. COOP. ASSN., INC. 2257 1
