Reference Data Rate Center Directory GRANTFORK, IL Rate Center GRANTFORK — IL Data last updated: March 10, 2026 LATA 520 State IL Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 38.83025351662994, -89.66609036882846 Area Codes 618 Top Carriers Carrier OCN NXX Count ALHAMBRA-GRANTFORK TEL. CO. 0978 1
