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Phone Directory 712-552 Detail

State Major City Time Zone
Iowa Sioux City Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
712-552 Hawarden, IA Heartland Telecom Company Of Iowa DBA Enventis Sioux Landline 02/04/1994

Other Series For Prefixes

712-5520###
712-5521###
712-5522###
712-5523###
712-5524###
712-5525###
712-5526###
712-5527###
712-5528###
712-5529###