Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 475

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-475 A Mount Auburn IA LPCYIAXODS0  1220 LA PORTE CITY TEL. CO. 635      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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