Reference Data Rate Center Directory REEHEIGHTS, SD Rate Center REEHEIGHTS — SD Data last updated: March 10, 2026 LATA 640 State SD Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 44.51586188801586, -99.2000718921805 Area Codes 605 Top Carriers Carrier OCN NXX Count VENTURE COMMUNICATIONS COOPERATIVE 1680 1
