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: PHNXAZMAX3X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
480-245 A Phoenix AZ 7421 AT&T - LOCAL 666      
480-245 2 Phoenix AZ 7421 AT&T - LOCAL 666   2009-04-17   
480-629 A Phoenix AZ 7421 AT&T - LOCAL 666      
480-629 6 Phoenix AZ 7421 AT&T - LOCAL 666      
480-629 7 Phoenix AZ 7421 AT&T - LOCAL 666      
602-293 A Phoenix AZ 7421 AT&T - LOCAL 666      
602-293 9 Phoenix AZ 7421 AT&T - LOCAL 666      
623-228 A Phoenix AZ 7421 AT&T - LOCAL 666      

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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