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.

Switch: LNBTAZXCDS3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
480-639 A Phoenix AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666      
480-639 1 Phoenix AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666   2008-10-30   
520-350 A Casa Grande AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666      
520-350 1 Casa Grande AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666   2008-07-05   
520-350 2 Casa Grande AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666   2009-09-12   
520-450 4 Casa Grande AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666   2011-05-07   
602-845 A Phoenix AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666      
602-845 1 Phoenix AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666   2008-10-30   
623-806 A Phoenix AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666      
623-806 1 Phoenix AZ 947E GILA LOCAL EXCHANGE CARRIER, INC. - AZ 666   2008-10-30   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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