Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX: 466

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-466 A Casa Grande AZ ELOYAZ01RS1  9636 QWEST CORPORATION 666      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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