Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 507 [Rate centres in NPA 507] [Dial plan for NPA 507]

NXX: 279

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-279 A Austin MN MDFDMNAT6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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