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Phone Directory 712-439 Detail

State Major City Time Zone
Iowa Sioux City Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
712-439 Hull, IA Heartland Telecom Company Of Iowa DBA Enventis Sioux Landline 02/04/1994

Other Series For Prefixes

712-4390###
712-4391###
712-4392###
712-4393###
712-4394###
712-4395###
712-4396###
712-4397###
712-4398###
712-4399###