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: PHNXAZWEDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
602-233 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-269 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-272 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-278 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-352 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-353 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-415 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-442 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-447 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-455 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-477 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-484 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-533 A Phoenix AZ 9636 QWEST CORPORATION 666      

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

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