Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Sierra Vista, AZ

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
520-945 6 TCSNAZMAXKX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 668   2023-09-11   
520-945 7 TCSNAZMAXKX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 668   2023-09-11   
520-945 8 TCSNAZMAXKX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 668   2023-09-11   
520-945 9 TCSNAZMAXKX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 668   2023-09-11   

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

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