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
623-333 7 Phoenix AZ   9636 QWEST CORPORATION 666   2006-10-23   
623-333 8 Phoenix AZ   9636 QWEST CORPORATION 666   2006-10-23   
623-333 9 Phoenix AZ   9636 QWEST CORPORATION 666   2006-10-23   
623-334 A Phoenix AZ PHNXAZPRDS0  9636 QWEST CORPORATION 666      
623-335 A Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666      
623-335 0 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-335 1 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-335 2 Phoenix AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-07-01   
623-335 3 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-335 4 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-335 5 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-335 6 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-335 7 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-335 8 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-335 9 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2011-08-30   
623-336 A Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
623-336 0 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2010-05-27   
623-336 1 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2010-05-27   
623-336 2 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2010-05-27   
623-336 3 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2010-05-27   
623-336 4 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2010-05-27   
623-336 5 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2010-05-27   
623-336 6 Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2010-07-06   
623-336 7 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2010-07-15   
623-336 8 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2010-07-23   
623-336 9 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2010-07-23   
623-337 A Phoenix AZ PHNYAZUXDS0  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
623-337 0 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2006-01-06   
623-337 1 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2006-01-06   
623-337 2 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-11-11   
623-337 3 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-11-11   
623-337 4 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2005-05-31   
623-337 5 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2005-05-31   
623-337 6 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2004-09-25   
623-337 7 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2004-09-25   
623-337 8 Phoenix AZ PHNYAZUXDS0  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
623-337 9 Phoenix AZ PHNYAZUXDS0  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
623-340 A Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 0 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 1 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 2 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 3 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 4 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 5 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 6 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 7 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 8 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-340 9 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-341 A Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-341 0 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      

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Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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