Reference Data Rate Center Directory CUBA, IL Rate Center CUBA — IL Data last updated: March 10, 2026 LATA 368 State IL Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 40.4927816365101, -90.19247553673199 Area Codes 309 Top Carriers Carrier OCN NXX Count FRONTIER NORTH, INC. - IL 1015 1
