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Tucson, AZ

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
520-427 1   6529 T-MOBILE USA, INC. 668   2013-03-11   
520-427 2   6529 T-MOBILE USA, INC. 668   2013-03-11   
520-427 3   6529 T-MOBILE USA, INC. 668   2013-03-11   
520-427 4   6529 T-MOBILE USA, INC. 668   2013-03-11   
520-427 5   6529 T-MOBILE USA, INC. 668   2013-03-11   
520-427 6   6529 T-MOBILE USA, INC. 668   2013-03-11   
520-427 7   6529 T-MOBILE USA, INC. 668   2013-03-11   
520-427 8   6529 T-MOBILE USA, INC. 668   2013-03-11   
520-427 9   624H ONVOY SPECTRUM, LLC 668   2023-10-11   
520-428 A TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-428 0   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 1   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 2   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 3   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 4   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 5   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 6   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 7   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 8   587F BANDWIDTH.COM CLEC, LLC - AZ 668   2014-03-23   
520-428 9   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-03-03   
520-429 A TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-429 0   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-429 1   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-429 2   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-429 3   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-429 4   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-429 5   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-429 6   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2004-11-11   
520-429 7   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2004-12-17   
520-429 8   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2004-12-17   
520-429 9   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2005-07-09   
520-433 A TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668      
520-433 0   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2013-11-15   
520-433 1   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2014-01-17   
520-433 2   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2013-03-15   
520-433 3   630E ONVOY, LLC - AZ 668   2013-01-14   
520-433 4   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2013-01-11   
520-433 5   630E ONVOY, LLC - AZ 668   2013-01-14   
520-433 6   630E ONVOY, LLC - AZ 668   2013-01-14   
520-433 7   630E ONVOY, LLC - AZ 668   2013-01-14   
520-433 8   630E ONVOY, LLC - AZ 668   2013-01-14   
520-433 9   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2013-04-15   
520-434 A TCSNAZSODS0  9636 QWEST CORPORATION 668      
520-434 0   9636 QWEST CORPORATION 668      
520-434 1   073H TELNYX LLC 668   2025-09-05   
520-434 2   9636 QWEST CORPORATION 668      
520-434 3   9636 QWEST CORPORATION 668      
520-434 4   9636 QWEST CORPORATION 668      
520-434 5   9636 QWEST CORPORATION 668      
520-434 6   9636 QWEST CORPORATION 668      
520-434 7   9636 QWEST CORPORATION 668      
520-434 8   9636 QWEST CORPORATION 668      
520-434 9   9636 QWEST CORPORATION 668      
520-437 A TCSNAZMAGT0  4793 XO ARIZONA, INC. 668      
520-437 0   4793 XO ARIZONA, INC. 668   2006-05-21   
520-437 1   6529 T-MOBILE USA, INC. 668   2007-03-09   
520-437 2   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-06-26   
520-437 3   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-06-26   
520-437 4   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-06-26   
520-437 5   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-06-26   
520-437 6   6529 T-MOBILE USA, INC. 668   2006-07-06   
520-437 7   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-07-22   
520-437 8   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-07-22   
520-437 9   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-07-13   
520-440 A TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-441 A TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-441 0   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2010-06-19   
520-441 1   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2010-08-17   
520-441 2   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2010-08-17   
520-441 3   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2010-11-22   
520-441 4   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2010-12-16   
520-441 5   829J PAETEC ITEL, LLC 668   2010-07-27   
520-441 6   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2010-12-16   
520-441 7   630E ONVOY, LLC - AZ 668   2010-11-14   
520-441 8   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2010-12-16   
520-441 9   318J COMCAST IP PHONE, LLC 668   2011-02-22   
520-443 A TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-443 0   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2007-07-28   
520-443 1   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2008-03-24   
520-443 2   508J CENTURYLINK COMMUNICATIONS, LLC 668   2008-03-10   
520-443 3   508J CENTURYLINK COMMUNICATIONS, LLC 668   2008-03-10   
520-443 4   508J CENTURYLINK COMMUNICATIONS, LLC 668   2008-03-10   
520-443 5   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-09-22   
520-443 6   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-09-22   
520-443 7   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-09-22   
520-443 8   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-09-22   
520-443 9   6529 T-MOBILE USA, INC. 668   2007-10-13   
520-444 A TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-445 A TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-445 0   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2008-04-25   
520-445 1   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2008-04-25   
520-445 2   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2008-04-25   
520-445 3   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2008-07-18   
520-445 4   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2008-07-18   
520-445 5   6529 T-MOBILE USA, INC. 668   2008-08-08   
520-445 6   318J COMCAST IP PHONE, LLC 668   2008-07-31   
520-445 7   318J COMCAST IP PHONE, LLC 668   2008-07-31   
520-445 8   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2008-08-07   
520-445 9   6529 T-MOBILE USA, INC. 668   2008-09-12   
520-446 A TCSNAZMAXLX  6630 USA MOBILITY WIRELESS, INC. 668      

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

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