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: 823

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-823 A Sasabe AZ SASBAZXCGT0  2171 ARIZONA TEL. CO. 668      
520-823 0 Sasabe AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2026-01-03   
520-823 2 Sasabe AZ   2171 ARIZONA TEL. CO. 668      
520-823 4 Sasabe AZ   145J TERRA NOVA TELECOM INC. 668   2025-07-20   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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