Reference Data Rate Center Directory ONEIDA, IL Rate Center ONEIDA — IL Data last updated: March 10, 2026 LATA 977 State IL Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 41.07437628301001, -90.22795490142802 Area Codes 309 Top Carriers Carrier OCN NXX Count ONEIDA TEL. EXCH. 1066 1
