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
623-755 5 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2009-03-13   
623-755 6 Phoenix AZ   630E ONVOY, LLC - AZ 666   2009-02-06   
623-755 7 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2009-03-09   
623-755 8 Phoenix AZ   630E ONVOY, LLC - AZ 666   2009-10-26   
623-755 9 Phoenix AZ   630E ONVOY, LLC - AZ 666   2009-10-26   
623-759 A Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-759 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-759 1 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-759 2 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-759 3 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-759 4 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-759 5 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-759 6 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-759 7 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2015-03-28   
623-759 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-759 9 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-03-29   
623-760 A Phoenix AZ PHNYAZUXDS0  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
623-760 0 Phoenix AZ   7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
623-760 1 Phoenix AZ   7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
623-760 2 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-05-12   
623-760 3 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2005-06-12   
623-760 4 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-04-05   
623-760 5 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2005-02-25   
623-760 6 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2005-02-25   
623-760 7 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2005-02-25   
623-760 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2005-07-15   
623-760 9 Phoenix AZ   7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666   2011-07-26   
623-764 A Phoenix AZ TEMPAZNR5MD  5562 METROPCS, INC. 666      
623-764 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-764 1 Phoenix AZ   5562 METROPCS, INC. 666      
623-764 2 Phoenix AZ   5562 METROPCS, INC. 666      
623-764 3 Phoenix AZ   5562 METROPCS, INC. 666      
623-764 4 Phoenix AZ   5562 METROPCS, INC. 666      
623-764 5 Phoenix AZ   5562 METROPCS, INC. 666      
623-764 6 Phoenix AZ   5562 METROPCS, INC. 666      
623-764 7 Phoenix AZ   5562 METROPCS, INC. 666      
623-764 8 Phoenix AZ   5562 METROPCS, INC. 666      
623-764 9 Phoenix AZ   5562 METROPCS, INC. 666   2014-09-29   
623-772 A Phoenix AZ PHNXAZBWDS0  9636 QWEST CORPORATION 666      
623-773 A Phoenix AZ PHNXAZPRDS0  9636 QWEST CORPORATION 666      
623-776 A Phoenix AZ PHNXAZPRDS0  9636 QWEST CORPORATION 666      
623-776 0 Phoenix AZ   9636 QWEST CORPORATION 666      
623-776 1 Phoenix AZ   9636 QWEST CORPORATION 666      
623-776 2 Phoenix AZ   9636 QWEST CORPORATION 666      
623-776 3 Phoenix AZ   9636 QWEST CORPORATION 666      
623-776 4 Phoenix AZ   9636 QWEST CORPORATION 666      
623-776 5 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-07-09   
623-776 6 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-07-09   
623-776 7 Phoenix AZ   9636 QWEST CORPORATION 666      
623-776 8 Phoenix AZ   9636 QWEST CORPORATION 666      

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

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