Reference Data Rate Center Directory CISCO, IL Rate Center CISCO — IL Data last updated: March 10, 2026 LATA 374 State IL Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 40.01152223298257, -88.72526150144897 Area Codes 217 Top Carriers Carrier OCN NXX Count FRONTIER NORTH, INC. - IL 1015 1
