Reference Data Rate Center Directory KASKASKIA, IL Rate Center KASKASKIA — IL Data last updated: March 10, 2026 LATA 520 State IL Area Codes 2 Exchanges (NXX) 3 Carriers 2 Coordinates 37.921581540151, -89.91592768052935 Area Codes 618 730 Top Carriers Carrier OCN NXX Count ONVOY, LLC 224C 2 SOUTHWESTERN BELL 9533 1
