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Phone Directory 605-427 Detail

State Major City Time Zone
South Dakota Sioux Falls Central / Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
605-427 Madison, SD Knology Of The Plains Lake Landline 08/20/2000

Other Series For Prefixes

605-4270###
605-4271###
605-4272###
605-4273###
605-4274###
605-4275###
605-4276###
605-4277###
605-4278###
605-4279###