Reference Data Rate Center Directory SO ASHLEY, SD Rate Center SO ASHLEY — SD Data last updated: March 10, 2026 LATA 638 State SD Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 45.93816156345044, -99.36705808219519 Area Codes 605 Top Carriers Carrier OCN NXX Count DICKEY RURAL TEL. COOP. 1611 1
