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: 376

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-376 A Sierra Vista AZ TCSMAZOI3MD  5562 METROPCS, INC. 668      
520-376 0 Sierra Vista AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2019-08-29   
520-376 1 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2020-03-30   
520-376 2 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2020-03-30   
520-376 3 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2019-12-09   
520-376 4 Sierra Vista AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2020-04-05   
520-376 5 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2019-12-09   
520-376 6 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2019-07-11   
520-376 7 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2019-07-11   
520-376 8 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2019-10-26   
520-376 9 Sierra Vista AZ TCSMAZOI3MD  5562 METROPCS, INC. 668   2019-04-12   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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