Reference Data Rate Center Directory PRAIRIE CY, IL Rate Center PRAIRIE CY — IL Data last updated: March 10, 2026 LATA 977 State IL Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 40.62198956808594, -90.46157659640868 Area Codes 309 Top Carriers Carrier OCN NXX Count FRONTIER NORTH, INC. - IL 1015 1
