Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 1220 LA PORTE CITY TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
319-342 A La Porte City IA LPCYIAXODS0  635      
319-475 A Mount Auburn IA LPCYIAXODS0  635      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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