Reference Data Rate Center Directory MADDOCK, ND Rate Center MADDOCK — ND Data last updated: March 10, 2026 LATA 638 State ND Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 47.96074041362947, -99.52738756542014 Area Codes 701 Top Carriers Carrier OCN NXX Count NORTH DAKOTA TELEPHONE CO. 1447 1
