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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-708 A Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2024-02-22   
520-709 A Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
520-710 A Tucson AZ TCSNAZMAX3Y  624H ONVOY SPECTRUM, LLC 668      
520-712 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-713 A Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2024-02-22   
520-714 A Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2024-02-22   
520-715 A Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2024-02-22   
520-716 A Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2024-02-22   
520-717 A Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2024-02-22   
520-718 A Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2024-02-22   
520-719 A Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-720 A Benson AZ BNSNAZSDDS0  9636 QWEST CORPORATION 668      
520-721 A Tucson AZ TCSNAZRNDS0  9636 QWEST CORPORATION 668      
520-722 A Tucson AZ TCSNAZRNDS0  9636 QWEST CORPORATION 668      
520-723 A Casa Grande AZ CLDGAZMARS1  9636 QWEST CORPORATION 666      
520-724 A Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-725 A Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2024-02-22   
520-727 A Douglas AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-728 A Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2024-04-08   
520-729 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-730 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-731 A Tucson AZ TCSNAZRNDS0  9636 QWEST CORPORATION 668      
520-732 A Sierra Vista AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-733 A Tucson AZ TCSNAZRNDS0  9636 QWEST CORPORATION 668      
520-734 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2024-04-15   
520-735 A Sierra Vista AZ TCSNAZMAXKX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 668   2024-05-27   
520-736 A Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2024-08-04   
520-737 A Sierra Vista AZ TCSNAZMAXPY  710A ALLO COMMUNICATIONS, LLC - NE 668   2024-08-16   
520-738 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2024-12-06   
520-739 A Tucson AZ TCSNAZMAX3Y  624H ONVOY SPECTRUM, LLC 668   2025-01-06   
520-740 A Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-741 A Tucson AZ TCSNAZSODS0  9636 QWEST CORPORATION 668      
520-742 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-743 A Tucson AZ TCSNAZWERS1  9636 QWEST CORPORATION 668      
520-744 A Tucson AZ TCSNAZCODS0  9636 QWEST CORPORATION 668      
520-745 A Tucson AZ TCSNAZCRDS0  9636 QWEST CORPORATION 668      
520-746 A Tucson AZ TCSNAZSODS0  9636 QWEST CORPORATION 668      
520-747 A Tucson AZ TCSNAZCRDS0  9636 QWEST CORPORATION 668      
520-748 A Tucson AZ TCSNAZCRDS0  9636 QWEST CORPORATION 668      
520-749 A Tucson AZ TCSNAZTVDS0  9636 QWEST CORPORATION 668      
520-750 A Tucson AZ TCSNAZCRDS0  9636 QWEST CORPORATION 668      
520-751 A Tucson AZ TCSNAZRNDS0  9636 QWEST CORPORATION 668      
520-752 A Casa Grande AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2025-02-22   
520-753 A Tucson AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2025-03-17   
520-754 A Sacaton AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2025-03-31   
520-755 A Lone Butte AZ PHNXAZ19AMD  965H FRACTEL, LLC 666      
520-756 A Tucson AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-757 A Casa Grande AZ   6529 T-MOBILE USA, INC. 666   2025-05-18   
520-758 A Blackwater AZ PHNXAZ19AMD  965H FRACTEL, LLC 666      
520-759 A Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
520-760 A Tucson AZ TCSNAZTVDS0  9636 QWEST CORPORATION 668      
520-761 A Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-762 A Tucson AZ VAILAZSODS0  9636 QWEST CORPORATION 668      
520-763 A Casa Grande AZ   6529 T-MOBILE USA, INC. 666   2025-09-05   
520-764 A Casa Grande AZ   6529 T-MOBILE USA, INC. 666   2025-12-21   
520-766 A Willcox AZ WLCXAZACDS0  183D VALLEY CONNECTIONS, L.L.C. - AZ 668      
520-770 A Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-771 A Tucson AZ TCSMAZCH0MD  197D VONAGE AMERICA LLC 668      
520-772 A Superior AZ PHNXAZ19CMD  516J TON80 COMMUNICATIONS, LLC 666      
520-775 A Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-777 A Tucson AZ TCSMAZSJAMD  7552 LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 668      
520-779 A Willcox AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-780 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-783 A Tucson AZ TCSMAZOI3MD  5562 METROPCS, INC. 668      
520-784 A Tucson AZ TCSNAZEADS0  9636 QWEST CORPORATION 668      
520-785 A Tucson AZ   907K ALLO COMMUNICATIONS LLC 668   2025-12-19   
520-788 A Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
520-789 A Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-790 A Tucson AZ TCSNAZCRDS0  9636 QWEST CORPORATION 668      
520-791 A Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-792 A Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-793 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-794 A Tucson AZ TCSNAZSODS0  9636 QWEST CORPORATION 668      
520-795 A Tucson AZ TCSNAZEADS0  9636 QWEST CORPORATION 668      
520-796 A Lone Butte AZ LNBTAZXCDS1  2179 GILA RIVER TELECOMM, INC. 666      
520-797 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-798 A Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-799 A Tucson AZ TCSNAZSODS0  9636 QWEST CORPORATION 668      
520-800 A Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-801 A Tucson AZ   410H WIDE VOICE, LLC - AZ 668   2025-06-12   
520-802 A Tucson AZ   616J LEAP TELECOM, LLC 668   2025-11-24   
520-803 A Sierra Vista AZ SRVSAZSODS0  9636 QWEST CORPORATION 668      
520-805 A Douglas AZ DGLSAZMARS1  9636 QWEST CORPORATION 668      
520-806 A Tucson AZ TCSNAZSODS0  9636 QWEST CORPORATION 668      
520-807 A Tucson AZ TCSNAZSODS0  9636 QWEST CORPORATION 668      
520-808 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-809 A Tucson AZ TCSNAZMAX0Y  890G INTRADO COMMUNICATIONS, LLC 668      
520-812 A Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2025-01-19   
520-815 A Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-818 A Tucson AZ CRNDAZMADS1  9636 QWEST CORPORATION 668      
520-820 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-822 A Tucson AZ TCSNAZSWDS0  9636 QWEST CORPORATION 668      
520-823 A Sasabe AZ SASBAZXCGT0  2171 ARIZONA TEL. CO. 668      
520-824 A Sunizona AZ PERCAZXCDS0  2176 VALLEY TEL COOP INC 668      
520-825 A Tucson AZ CRNDAZMADS1  9636 QWEST CORPORATION 668      
520-826 A Pearce AZ PERCAZXCDS0  2176 VALLEY TEL COOP INC 668      
520-827 A Superior AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
520-829 A Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668      
520-831 A Prescott AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
520-833 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      

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Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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