Reference Data Rate Center Directory PUTNAM, IL Rate Center PUTNAM — IL Data last updated: March 10, 2026 LATA 368 State IL Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 41.18451914616441, -89.39683225205778 Area Codes 815 Top Carriers Carrier OCN NXX Count FRONTIER NORTH, INC. - IL 1036 1
