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: PHNDAZ91DS5

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
480-526 A Phoenix AZ 3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2011-11-12   
480-685 A Phoenix AZ 3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2011-11-28   
623-252 A Phoenix AZ 3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2007-10-29   
623-455 A Phoenix AZ 3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
928-323 A Somerton AZ 3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2012-07-09   
928-466 A Castle Rock AZ 3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2005-04-29   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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