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
623-393 4 Phoenix AZ BCKYAZMADS0  9636 QWEST CORPORATION 666      
623-393 5 Phoenix AZ BCKYAZMADS0  9636 QWEST CORPORATION 666      
623-393 6 Phoenix AZ BCKYAZMADS0  9636 QWEST CORPORATION 666      
623-393 7 Phoenix AZ BCKYAZMADS0  9636 QWEST CORPORATION 666      
623-393 8 Phoenix AZ WNBGAZ01RS1  9636 QWEST CORPORATION 666      
623-393 9 Phoenix AZ WNBGAZ01RS1  9636 QWEST CORPORATION 666      
623-396 A Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
623-396 0 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-11-03   
623-396 1 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-11-03   
623-396 2 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-11-03   
623-396 3 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2012-02-03   
623-396 4 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2012-02-03   
623-396 5 Phoenix AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-07-24   
623-396 6 Phoenix AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-07-24   
623-396 7 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2011-11-05   
623-396 8 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2011-11-05   
623-396 9 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2011-11-05   
623-398 A Phoenix AZ PHNAAZ55DS1  4793 XO ARIZONA, INC. 666      
623-398 0 Phoenix AZ PHNAAZ55DS1  4793 XO ARIZONA, INC. 666      
623-398 1 Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-398 2 Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-398 3 Phoenix AZ PHNAAZ55DS1  4793 XO ARIZONA, INC. 666      
623-398 4 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2004-05-02   
623-398 5 Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2004-05-02   
623-398 6 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2004-08-17   
623-398 7 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2004-08-17   
623-398 8 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2004-08-17   
623-398 9 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2006-03-09   
623-399 A Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-399 0 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-09-17   
623-399 1 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2005-05-05   
623-399 2 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2005-11-10   
623-399 3 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-09-17   
623-399 4 Phoenix AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2004-10-29   
623-399 5 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2005-10-28   
623-399 6 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2005-09-07   
623-399 7 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2005-10-28   
623-399 8 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2005-09-07   
623-399 9 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2005-09-07   
623-400 A Phoenix AZ PHNXAZ19AMD  965H FRACTEL, LLC 666      
623-400 0 Phoenix AZ PHNXAZ19AMD  965H FRACTEL, LLC 666   2020-09-07   
623-400 1 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-08   
623-400 2 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-08   
623-400 3 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-08   
623-400 4 Phoenix AZ PHNXAZ19AMD  965H FRACTEL, LLC 666   2020-09-07   
623-400 5 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-08   
623-400 6 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-08   
623-400 7 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-08   
623-400 8 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2020-09-08   
623-400 9 Phoenix AZ SCDLAZQFGT2  663G RE-INVENT TELECOM, LLC - AZ 666   2020-09-14   

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

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