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.

NPA: 602 [Rate centres in NPA 602] [Dial plan for NPA 602]

NXX: 392

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
602-392 A Phoenix AZ PHNXAZEADS0  9636 QWEST CORPORATION 666      
602-392 0 Phoenix AZ   9636 QWEST CORPORATION 666      
602-392 1 Phoenix AZ   9636 QWEST CORPORATION 666      
602-392 2 Phoenix AZ   9636 QWEST CORPORATION 666      
602-392 3 Phoenix AZ   9636 QWEST CORPORATION 666      
602-392 4 Phoenix AZ   9636 QWEST CORPORATION 666      
602-392 5 Phoenix AZ   9636 QWEST CORPORATION 666      
602-392 7 Phoenix AZ   9636 QWEST CORPORATION 666      
602-392 8 Phoenix AZ   9636 QWEST CORPORATION 666      
602-392 9 Phoenix AZ   9636 QWEST CORPORATION 666      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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