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: 623 [Rate centres in NPA 623] [Dial plan for NPA 623]

NXX: 845

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-845 A Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 0 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 1 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 2 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2005-07-15   
623-845 3 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 4 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 5 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 6 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 7 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 8 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 9 Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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