Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Casa Grande, AZ

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
520-868 A FLRNAZMARS1  9636 QWEST CORPORATION 666      
520-876 A CSGRAZMADS0  9636 QWEST CORPORATION 666      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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