Reference Data Rate Center Directory DEDHAM, IA Rate Center DEDHAM — IA Data last updated: March 10, 2026 LATA 644 State IA Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 41.9066719940218, -94.82294440533197 Area Codes 712 Top Carriers Carrier OCN NXX Count WINDSTREAM IOWA COMMUNICATIONS, INC. 1178 1
