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Phone Directory 712-423 Detail

State Major City Time Zone
Iowa Sioux City Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
712-423 Onawa, IA Qwest Corporation Monona Landline 02/04/1994

Other Series For Prefixes

712-4230###
712-4231###
712-4232###
712-4233###
712-4234###
712-4235###
712-4236###
712-4237###
712-4238###
712-4239###