Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 623 [Rate centres in NPA 623] [Dial plan for NPA 623]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-824 1 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-12-16   
623-824 2 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-12-16   
623-824 3 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-04-09   
623-824 4 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-04-09   
623-824 5 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-04-09   
623-824 6 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-04-09   
623-824 7 Phoenix AZ   7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
623-824 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2005-07-15   
623-824 9 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2006-09-11   
623-825 A Phoenix AZ AGFIAZSRDS0  9636 QWEST CORPORATION 666      
623-826 A Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-832 A Phoenix AZ PHNXAZMRDS0  9636 QWEST CORPORATION 666      
623-832 0 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 1 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 2 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 3 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 4 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 5 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 6 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 7 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 8 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-832 9 Phoenix AZ   9636 QWEST CORPORATION 666   2010-09-03   
623-842 A Phoenix AZ GLDLAZMADS0  9636 QWEST CORPORATION 666      
623-845 A Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-845 0 Phoenix AZ   9636 QWEST CORPORATION 666      
623-845 1 Phoenix AZ   9636 QWEST CORPORATION 666      
623-845 2 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2005-07-15   
623-845 3 Phoenix AZ   9636 QWEST CORPORATION 666      
623-845 4 Phoenix AZ   9636 QWEST CORPORATION 666      
623-845 5 Phoenix AZ   9636 QWEST CORPORATION 666      
623-845 6 Phoenix AZ   9636 QWEST CORPORATION 666      
623-845 7 Phoenix AZ   9636 QWEST CORPORATION 666      
623-845 8 Phoenix AZ   9636 QWEST CORPORATION 666      
623-845 9 Phoenix AZ   9636 QWEST CORPORATION 666      
623-846 A Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-847 A Phoenix AZ GLDLAZMADS0  9636 QWEST CORPORATION 666      
623-848 A Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-849 A Phoenix AZ PHNXAZMYDS0  9636 QWEST CORPORATION 666      
623-850 A Phoenix AZ PHNZAZ87PS0  7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666      
623-850 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2011-06-21   
623-850 1 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2010-05-02   
623-850 2 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2010-05-15   
623-850 3 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2010-04-25   
623-850 4 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2010-05-02   
623-850 5 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2014-09-17   
623-850 6 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2010-05-31   
623-850 7 Phoenix AZ   7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666      
623-850 8 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2010-05-02   
623-850 9 Phoenix AZ   5562 METROPCS, INC. 666   2014-10-13   
623-853 A Phoenix AZ WHTKAZMARS2  9636 QWEST CORPORATION 666      

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

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