Local Calling Guide

Area code/prefix search

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Tucson, AZ

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
520-999 8 TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2013-01-04   
520-999 9 TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2013-01-04   

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Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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