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.

OCN: 018J AIRUS, INC. - AZ

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
480-923 A Phoenix AZ PHNAAZ552MD  666      
480-923 1 Phoenix AZ PHNAAZ552MD  666   2017-08-13   
520-849 A Tucson AZ TCSNAZ64WMD  668      
520-849 1 Tucson AZ TCSNAZ64WMD  668   2017-08-06   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.