Reference Data Rate Center Directory W MARIETTA, SD Rate Center W MARIETTA — SD Data last updated: March 10, 2026 LATA 626 State SD Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 44.99428027187168, -96.45557772445288 Area Codes 605 Top Carriers Carrier OCN NXX Count FARMERS MUTUAL TEL. CO. 1389 1
