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: 592

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-592 A Nogales AZ TCSMAZEE0MD  073H TELNYX LLC 668      
520-592 0 Nogales AZ   073H TELNYX LLC 668   2021-12-05   
520-592 1 Nogales AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2022-02-17   
520-592 2 Nogales AZ   624H ONVOY SPECTRUM, LLC 668   2021-12-11   
520-592 3 Nogales AZ   624H ONVOY SPECTRUM, LLC 668   2021-12-11   
520-592 4 Nogales AZ   630E ONVOY, LLC - AZ 668   2021-12-30   
520-592 5 Nogales AZ   630E ONVOY, LLC - AZ 668   2021-12-30   
520-592 6 Nogales AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2022-02-17   
520-592 7 Nogales AZ   630E ONVOY, LLC - AZ 668   2021-12-30   
520-592 8 Nogales AZ   630E ONVOY, LLC - AZ 668   2021-12-30   
520-592 9 Nogales AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2022-02-17   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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