Reference Data Rate Center Directory COPAN, OK Rate Center COPAN — OK Data last updated: March 10, 2026 LATA 538 State OK Area Codes 1 Exchanges (NXX) 2 Carriers 1 Coordinates 36.899682703525, -95.927149667904 Area Codes 918 Top Carriers Carrier OCN NXX Count SOUTHWESTERN BELL 9533 2
