Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 774B WALNUT TELEPHONE COMPANY, INC. - IA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
712-207 A Shelby IA AVOCIAXO2MD  644      
712-207 2 Shelby IA   644   2004-07-16   
712-307 6 Avoca IA   644   2004-06-06   
712-396 8 Council Bluffs IA   644   2006-12-30   
712-407 A Minden IA AVOCIAXO2MD  644      
712-407 2 Minden IA   644   2004-07-16   
712-485 8 Neola IA   644   2006-12-30   
712-545 8 Crescent IA   644   2006-12-30   
712-566 8 Underwood IA   644   2006-12-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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