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
623-547 0 Phoenix AZ LTPKAZMADS0  9636 QWEST CORPORATION 666      
623-547 1 Phoenix AZ LTPKAZMADS0  9636 QWEST CORPORATION 666      
623-547 2 Phoenix AZ LTPKAZMADS0  9636 QWEST CORPORATION 666      
623-547 3 Phoenix AZ LTPKAZMADS0  9636 QWEST CORPORATION 666      
623-547 4 Phoenix AZ LTPKAZMADS0  9636 QWEST CORPORATION 666      
623-547 5 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2004-12-08   
623-547 6 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2004-12-08   
623-547 7 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2004-12-08   
623-547 8 Phoenix AZ DRVYAZNODS0  9636 QWEST CORPORATION 666      
623-547 9 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2006-03-09   
623-551 A Phoenix AZ DRVYAZNODS0  9636 QWEST CORPORATION 666      
623-552 A Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-552 0 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2008-12-07   
623-552 1 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2008-12-07   
623-552 2 Phoenix AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2008-11-15   
623-552 3 Phoenix AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2008-11-15   
623-552 4 Phoenix AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2008-11-15   
623-552 5 Phoenix AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2008-11-15   
623-552 6 Phoenix AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2008-11-15   
623-552 7 Phoenix AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2008-11-15   
623-552 8 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2008-09-12   
623-552 9 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2008-09-12   
623-556 A Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-556 0 Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-556 1 Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-556 2 Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-556 3 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2005-01-17   
623-556 4 Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-556 5 Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-556 6 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2004-03-06   
623-556 7 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2004-03-06   
623-556 8 Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-556 9 Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-561 A Phoenix AZ AGFIAZSRDS0  9636 QWEST CORPORATION 666      
623-562 A Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666      
623-562 0 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2017-11-23   
623-562 1 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2017-11-23   
623-562 2 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2017-11-23   
623-562 3 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2017-11-23   
623-562 4 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2017-08-19   
623-562 5 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2017-11-23   
623-562 6 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2017-11-21   
623-562 7 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2017-11-21   
623-562 8 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2019-03-06   
623-562 9 Phoenix AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2019-03-06   
623-565 A Phoenix AZ PHNZAZ87PS0  7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666      
623-565 0 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2007-08-13   
623-565 1 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2007-08-13   
623-565 2 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2007-08-13   
623-565 3 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2007-08-13   

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

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