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: 525

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-525 A Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-525 0 Bisbee AZ TCSNAZMAX6Y  073H TELNYX LLC 668   2020-11-21   
520-525 1 Bisbee AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2020-12-07   
520-525 2 Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2020-07-09   
520-525 3 Bisbee AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-01-19   
520-525 4 Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2020-11-24   
520-525 5 Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2020-07-09   
520-525 6 Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2021-01-17   
520-525 7 Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2021-01-17   
520-525 8 Bisbee AZ TCSMAZCHEMD  321J HD CARRIER LLC 668   2020-11-15   
520-525 9 Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2021-01-17   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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