Reference Data Rate Center Directory MOUNDS, OK Rate Center MOUNDS — OK Data last updated: March 10, 2026 LATA 538 State OK Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 35.87589998117573, -96.05923958215904 Area Codes 918 Top Carriers Carrier OCN NXX Count OKLAHOMA COMMUNICATION SYSTEM, INC. 1984 1
