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: 680

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-680 A Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-680 0 Bisbee AZ TCSNAZMAX6Y  073H TELNYX LLC 668   2023-09-09   
520-680 3 Bisbee AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2023-08-26   
520-680 7 Bisbee AZ   321J HD CARRIER LLC 668   2025-09-19   
520-680 8 Bisbee AZ   321J HD CARRIER LLC 668   2025-09-19   
520-680 9 Bisbee AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2023-10-21   

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

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