Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 623 [Rate centres in NPA 623] [Dial plan for NPA 623]

NXX: 526

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-526 A Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-526 0 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 1 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 2 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 3 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 4 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 5 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 6 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 7 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 8 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 9 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2019-05-05   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.