Reference Data Rate Center Directory VIAN, OK Rate Center VIAN — OK Data last updated: March 10, 2026 LATA 538 State OK Area Codes 1 Exchanges (NXX) 2 Carriers 1 Coordinates 35.49982889318, -94.97228875394899 Area Codes 918 Top Carriers Carrier OCN NXX Count OKLAHOMA WINDSTREAM, INC. 2011 2
