Reference Data Rate Center Directory NO GORDON, SD Rate Center NO GORDON — SD Data last updated: March 10, 2026 LATA 646 State SD Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 43.03280299116808, -102.2157002027089 Area Codes 605 Top Carriers Carrier OCN NXX Count GREAT PLAINS COMMUNICATIONS, INC. 1577 1
