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Phone Directory 712-857 Detail

State Major City Time Zone
Iowa Sioux City Central

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Example: (712) 857-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
712-857 Mallard, IA Northwest Telephone Cooperative Association Palo Alto Landline 02/04/1994

Other Series For Prefixes

712-8570###
712-8571###
712-8572###
712-8573###
712-8574###
712-8575###
712-8576###
712-8577###
712-8578###
712-8579###