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Phone Directory 712-778 Detail

State Major City Time Zone
Iowa Sioux City Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
712-778 Lewis, IA Griswold Cooperative Telephone Co. Cass Landline 02/04/1994

Other Series For Prefixes

712-7780###
712-7781###
712-7782###
712-7783###
712-7784###
712-7785###
712-7786###
712-7787###
712-7788###
712-7789###