Reference Data Rate Center Directory SOVENTURIA, SD Rate Center SOVENTURIA — SD Data last updated: March 10, 2026 LATA 638 State SD Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 45.93889572646357, -99.56206192938997 Area Codes 605 Top Carriers Carrier OCN NXX Count DICKEY RURAL TEL. COOP. 1611 1
