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: 292

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-292 A Phoenix AZ TEMPAZNR7MD  5562 METROPCS, INC. 666      
623-292 0 Phoenix AZ TEMPAZNR7MD  5562 METROPCS, INC. 666   2020-10-24   
623-292 1 Phoenix AZ TEMPAZNR7MD  5562 METROPCS, INC. 666   2020-10-24   
623-292 2 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-10-26   
623-292 3 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-10-26   
623-292 4 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-10-26   
623-292 5 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-10-26   
623-292 6 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-10-26   
623-292 7 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-10-26   
623-292 8 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-10-26   
623-292 9 Phoenix AZ TEMPAZNR7MD  5562 METROPCS, INC. 666   2020-10-24   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.