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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-754 9 Sacaton AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2026-10-18   
520-755 A Lone Butte AZ PHNXAZ19AMD  965H FRACTEL, LLC 666      
520-755 1 Lone Butte AZ PHNXAZ19DMD  490J BOOST SUBSCRIBERCO L.L.C. 666   2023-10-01   
520-755 5 Lone Butte AZ PHNXAZ19AMD  965H FRACTEL, LLC 666   2020-11-22   
520-755 7 Lone Butte AZ   145J TERRA NOVA TELECOM INC. 666   2025-08-31   
520-756 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 0 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 1 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 2 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 3 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 4 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 5 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 6 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 7 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 8 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-756 9 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-05-11   
520-757 A Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-05-18   
520-757 0 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2025-07-11   
520-757 1 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2025-07-11   
520-757 2 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2025-07-11   
520-757 3 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-06-29   
520-757 4 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-06-29   
520-757 5 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-06-29   
520-757 6 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-06-29   
520-757 7 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-05-18   
520-757 8 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-05-18   
520-757 9 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-05-18   
520-758 A Blackwater AZ PHNXAZ19AMD  965H FRACTEL, LLC 666      
520-758 6 Blackwater AZ PHNXAZ19AMD  965H FRACTEL, LLC 666   2020-12-18   
520-759 A Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
520-759 0 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2018-10-25   
520-759 1 Casa Grande AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2019-08-29   
520-759 2 Casa Grande AZ MRCPAZMADS0  9636 QWEST CORPORATION 666   2018-11-14   
520-759 3 Casa Grande AZ MRCPAZMADS0  9636 QWEST CORPORATION 666   2018-11-14   
520-759 4 Casa Grande AZ PHNXAZ28YMD  597F VOIP INNOVATIONS, LLC 666   2019-02-07   
520-759 5 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2019-03-22   
520-759 6 Casa Grande AZ TEMPAZNR5MD  5562 METROPCS, INC. 666   2019-04-05   
520-759 7 Casa Grande AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2019-01-30   
520-759 8 Casa Grande AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2019-01-24   
520-759 9 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2020-11-27   
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      
520-762 0 Tucson AZ VAILAZSODS0  9636 QWEST CORPORATION 668      
520-762 1 Tucson AZ VAILAZSODS0  9636 QWEST CORPORATION 668      
520-762 2 Tucson AZ   145J TERRA NOVA TELECOM INC. 668   2025-08-31   
520-762 3 Tucson AZ VAILAZSODS0  9636 QWEST CORPORATION 668      
520-762 4 Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2006-01-28   
520-762 5 Tucson AZ VAILAZSODS0  9636 QWEST CORPORATION 668      
520-762 6 Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2006-01-28   
520-762 7 Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2006-01-28   
520-762 8 Tucson AZ VAILAZSODS0  9636 QWEST CORPORATION 668      
520-762 9 Tucson AZ VAILAZSODS0  9636 QWEST CORPORATION 668      
520-763 A Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-09-05   
520-763 0 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2025-11-07   
520-763 1 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2025-11-07   
520-763 2 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-10-12   
520-763 3 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-10-12   
520-763 4 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-10-12   
520-763 5 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-10-12   
520-763 6 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-11-23   
520-763 7 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-09-05   
520-763 8 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-09-05   
520-763 9 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-09-05   
520-764 A Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-12-21   
520-764 0 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2025-12-22   
520-764 1 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2025-12-22   
520-764 2 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-01-03   
520-764 3 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-01-03   
520-764 4 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2026-02-05   
520-764 5 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-12-21   
520-764 6 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-12-21   
520-764 7 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-12-21   
520-764 8 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-12-21   
520-764 9 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2025-12-21   
520-765 A Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2026-03-05   
520-765 0 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-03-06   
520-765 1 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-03-06   
520-765 2 Casa Grande AZ PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2026-03-21   
520-765 3 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-05-01   
520-765 5 Casa Grande AZ   114J EXIANT COMMUNICATIONS LLC 666   2026-10-30   
520-765 7 Casa Grande AZ   890G INTRADO COMMUNICATIONS, LLC 666   2026-10-26   
520-765 9 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2026-03-05   
520-766 A Willcox AZ WLCXAZACDS0  183D VALLEY CONNECTIONS, L.L.C. - AZ 668      
520-767 A Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-05-29   
520-767 0 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2026-06-28   
520-767 1 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2026-08-28   
520-767 4 Casa Grande AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-10-16   
520-767 5 Casa Grande AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-10-16   
520-767 6 Casa Grande AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-10-16   
520-767 7 Casa Grande AZ   145J TERRA NOVA TELECOM INC. 666   2026-08-12   
520-767 8 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-05-29   
520-767 9 Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2026-05-29   
520-770 A Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-770 0 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-770 1 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-770 2 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-770 3 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-770 4 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-770 5 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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