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: PHNXAZMADS4

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
602-534 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-537 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-542 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-590 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-593 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-594 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-597 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-608 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-701 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-709 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-712 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-716 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-719 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-720 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-744 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-747 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-766 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-771 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-774 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-817 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-822 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-827 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-839 A Phoenix AZ 9636 QWEST CORPORATION 666      
602-876 A Phoenix AZ 9636 QWEST CORPORATION 666      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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