Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 1331 WEST IOWA TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
712-376 A Marcus IA MRCSIAXORS0  630      
712-445 A Quimby IA QMBYIAXORS0  630      
712-446 A Sutherland IA STLDIAXORS0  630      
712-756 A Alton IA ALTNIAXORS0  630      
712-762 A Anita IA ANITIAXODS0  644      
712-786 A Remsen IA REMSIAXODS1  630      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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