South Dakota
 
CITY PROV PHONE CONNECTION
Pierre SD 605-945-3360 V.34+, K56flex-V.90
Rapid City SD 605-355-7660 ISDN, V.34+, K56flex-V.90
Sioux Falls SD 605-367-1880 ISDN, V.34+, K56flex-V.90
Watertown SD 605-884-3780 ISDN, V.34+, K56flex-V.90
Yankton SD 402-667-1020 V.34+, K56flex-V.90