Reference Data Rate Center Directory HITCHCOCK, SD Rate Center HITCHCOCK — SD Data last updated: March 10, 2026 LATA 640 State SD Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 44.62995330715891, -98.41027105251321 Area Codes 605 Top Carriers Carrier OCN NXX Count VENTURE COMMUNICATIONS COOPERATIVE 1680 1
