Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 623 [Rate centres in NPA 623] [Dial plan for NPA 623]

NXX: 439

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-439 A Phoenix AZ PHNXAZMAXQY  624H ONVOY SPECTRUM, LLC 666      
623-439 0 Phoenix AZ PHNXAZMAXQY  624H ONVOY SPECTRUM, LLC 666   2017-08-27   
623-439 1 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2018-09-03   
623-439 2 Phoenix AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2018-08-17   
623-439 3 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2018-09-03   
623-439 4 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2018-09-03   
623-439 5 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2018-09-03   
623-439 6 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2018-09-03   
623-439 7 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2018-09-03   
623-439 8 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2018-09-03   
623-439 9 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2018-09-03   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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