Reference Data Rate Center Directory BLAIRSVL, IL Rate Center BLAIRSVL — IL Data last updated: March 10, 2026 LATA 978 State IL Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 38.16861090358309, -88.46417189311565 Area Codes 618 Top Carriers Carrier OCN NXX Count HAMILTON COUNTY TELEPHONE CO-OP 1024 1
