Telephone Companies
Aberdeen
Beresford
Bison
Bridgewater
Brookings
Canton
Centerville
Chamberlain
Clark
Clear Lake
Eagle Butte
Emery
Faulkton
Garretson
Groton
Hayti
Herreid
Hot Springs
Jefferson
Kadoka
Kennebec
Keystone
Kimball
Madison
Mobridge
New Effington
Rapid City
Salem
Sioux Falls
Tabor
Tea
Timber Lake
Tyndall
Wagner
Wall
Watertown
Webster
Wentworth
Woonsocket
Yankton