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: PHNXAZGRDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
602-298 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-338 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-375 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-436 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-439 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-467 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-504 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-543 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-547 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-548 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-564 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-588 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-644 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-789 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-843 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-862 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-863 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-866 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-896 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-938 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-942 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-978 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-993 A Phoenix AZ 9636 QWEST CORPORATION 666      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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