Reference Data Rate Center Directory COIN, IA Rate Center COIN — IA Data last updated: March 10, 2026 LATA 644 State IA Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 40.65620862343584, -95.23390347579887 Area Codes 712 Top Carriers Carrier OCN NXX Count IAMO COMMUNICATIONS, INC. 1206 1
