Local Calling Guide

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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
623-498 9 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2010-08-06   
623-499 A Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-499 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-08-10   
623-499 1 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-08-10   
623-499 2 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-08-10   
623-499 3 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2015-07-30   
623-499 4 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-08-10   
623-499 5 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-08-10   
623-499 6 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-08-10   
623-499 7 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2015-09-30   
623-499 8 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2015-10-30   
623-499 9 Phoenix AZ   630E ONVOY, LLC - AZ 666   2015-08-13   
623-500 A Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-500 0 Phoenix AZ   630E ONVOY, LLC - AZ 666   2013-03-29   
623-500 1 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2014-04-04   
623-500 2 Phoenix AZ   630E ONVOY, LLC - AZ 666   2013-11-14   
623-500 3 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2013-10-28   
623-500 4 Phoenix AZ   630E ONVOY, LLC - AZ 666   2013-03-29   
623-500 5 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2013-10-28   
623-500 6 Phoenix AZ   630E ONVOY, LLC - AZ 666   2013-11-14   
623-500 7 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-10-01   
623-500 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-10-01   
623-500 9 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-10-01   
623-505 A Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
623-505 0 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
623-505 1 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
623-505 2 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
623-505 3 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2005-02-06   
623-505 4 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
623-505 5 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
623-505 6 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
623-505 7 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2005-02-06   
623-505 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2006-01-06   
623-505 9 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
623-512 A Phoenix AZ PHNZAZ87PS0  7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666      
623-512 0 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-08-04   
623-512 1 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-05-14   
623-512 2 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-05-14   
623-512 3 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-05-14   
623-512 4 Phoenix AZ   7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666      
623-512 5 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-05-14   
623-512 6 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-05-14   
623-512 7 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-05-14   
623-512 8 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-05-14   
623-512 9 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2003-05-14   
623-516 A Phoenix AZ DRVYAZNODS0  9636 QWEST CORPORATION 666      
623-518 A Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-518 0 Phoenix AZ   5562 METROPCS, INC. 666   2005-05-22   
623-518 1 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-518 2 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2005-02-06   

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

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