Reference Data Rate Center Directory MELVILLE, MT Rate Center MELVILLE — MT Data last updated: March 10, 2026 LATA 650 State MT Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 46.1032046312417, -109.9543936642308 Area Codes 406 Top Carriers Carrier OCN NXX Count TRIANGLE TEL. COOP. ASSN., INC. 2257 1
