Reference Data Rate Center Directory FISK, MO Rate Center FISK — MO Data last updated: March 10, 2026 LATA 520 State MO Area Codes 2 Exchanges (NXX) 3 Carriers 2 Coordinates 36.78186648475202, -90.207691404822 Area Codes 235 573 Top Carriers Carrier OCN NXX Count ONVOY, LLC - MO 093F 2 SOUTHWESTERN BELL 9533 1
