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Phone Directory 605-723 Detail

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

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Example: (605) 723-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
605-723 Belle Fourche, SD Knology Of The Black Hills Butte Landline 01/14/2000

Other Series For Prefixes

605-7230###
605-7231###
605-7232###
605-7233###
605-7234###
605-7235###
605-7236###
605-7237###
605-7238###
605-7239###