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: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-438 A Whitlow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
520-438 0 Whitlow AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2019-12-03   
520-438 1 Whitlow AZ PHNXAZ28VMD  073H TELNYX LLC 666   2020-08-20   
520-438 3 Whitlow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-05-26   
520-438 4 Whitlow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-05-26   
520-438 5 Whitlow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-10   
520-438 6 Whitlow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-10   
520-438 7 Whitlow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-12-02   
520-438 8 Whitlow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-12-02   
520-438 9 Whitlow AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2020-11-20   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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