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

NXX: 528

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
602-528 A Phoenix AZ PHNXAZMADS4  9636 QWEST CORPORATION 666      
602-528 0 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 1 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 2 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 3 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 4 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 5 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 6 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 7 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 8 Phoenix AZ   9636 QWEST CORPORATION 666      
602-528 9 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2026-01-07   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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