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: PHNXAZMAY0X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
480-597 A Phoenix AZ 425J CSC WIRELESS, LLC 666      
480-597 0 Phoenix AZ 425J CSC WIRELESS, LLC 666   2019-08-21   
480-597 2 Phoenix AZ 425J CSC WIRELESS, LLC 666   2019-08-21   
928-419 A Flagstaff AZ 425J CSC WIRELESS, LLC 666      
928-419 1 Flagstaff AZ 425J CSC WIRELESS, LLC 666   2019-07-13   
928-419 2 Flagstaff AZ 425J CSC WIRELESS, LLC 666   2019-05-11   
928-419 4 Flagstaff AZ 425J CSC WIRELESS, LLC 666   2024-08-08   
928-547 8 Flagstaff AZ 425J CSC WIRELESS, LLC 666   2024-07-28   

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

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