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Phone Directory 712-729 Detail

State Major City Time Zone
Iowa Sioux City Central

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Example: (712) 729-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
712-729 Sanborn, IA Northern Iowa Telephone Co. Obrien Landline 02/04/1994

Other Series For Prefixes

712-7290###
712-7291###
712-7292###
712-7293###
712-7294###
712-7295###
712-7296###
712-7297###
712-7298###
712-7299###