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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
520-402 A Benson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-403 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-404 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-405 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-406 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-407 A Tucson AZ TCSNAZFWDS0  9636 QWEST CORPORATION 668      
520-408 A Tucson AZ TCSNAZFWDS0  9636 QWEST CORPORATION 668      
520-409 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-410 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-412 A Tombstone AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668      
520-413 A Casa Grande AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
520-414 A Casa Grande AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
520-415 A Nogales AZ TCSNAZMAXRX  593K MCC TELEPHONY LLC 668      
520-416 A Tucson AZ TCSNAZMAX8Y  114J EXIANT COMMUNICATIONS LLC 668      
520-417 A Sierra Vista AZ SRVSAZMADS0  9636 QWEST CORPORATION 668      
520-418 A Stotonic AZ LNBTAZXCDS1  2179 GILA RIVER TELECOMM, INC. 666      
520-419 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-420 A Tucson AZ TCSMAZCHEMD  321J HD CARRIER LLC 668      
520-421 A Casa Grande AZ CSGRAZMADS0  9636 QWEST CORPORATION 666      
520-422 A Bisbee AZ TCSNAZMAXSX  7421 AT&T - LOCAL 668      
520-423 A Casa Grande AZ CSGRAZMADS0  9636 QWEST CORPORATION 666      
520-424 A Casa Grande AZ STFDAZMARS1  9636 QWEST CORPORATION 666      
520-425 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-426 A Casa Grande AZ CSGRAZMADS0  9636 QWEST CORPORATION 666      
520-427 A Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-428 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-429 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-430 A Maricopa Village AZ LNBTAZXCDS1  2179 GILA RIVER TELECOMM, INC. 666      
520-431 A Casa Grande AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
520-432 A Bisbee AZ BISBAZMARS1  9636 QWEST CORPORATION 668      
520-433 A Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668      
520-434 A Tucson AZ TCSNAZSODS0  9636 QWEST CORPORATION 668      
520-435 A Willcox AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-436 A Hayden AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-437 A Tucson AZ TCSNAZMAGT0  4793 XO ARIZONA, INC. 668      
520-438 A Whitlow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
520-439 A Sierra Vista AZ SRVSAZMADS0  9636 QWEST CORPORATION 668      
520-440 A Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-441 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-442 A Benson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-443 A Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-444 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-445 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-446 A Tucson AZ TCSNAZMAXLX  6630 USA MOBILITY WIRELESS, INC. 668      
520-447 A Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-448 A Tucson AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668      
520-449 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-450 A Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
520-451 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-452 A Sierra Vista AZ SRVSAZMADS0  9636 QWEST CORPORATION 668      
520-453 A Tombstone AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-454 A Sierra Vista AZ SRVSAZMADS0  9636 QWEST CORPORATION 668      
520-455 A Nogales AZ PTGNAZELRS1  9636 QWEST CORPORATION 668      
520-456 A Sierra Vista AZ SRVSAZNORS1  9636 QWEST CORPORATION 668      
520-457 A Tombstone AZ TMBSAZMARS1  9636 QWEST CORPORATION 668      
520-458 A Sierra Vista AZ SRVSAZMADS0  9636 QWEST CORPORATION 668      
520-459 A Sierra Vista AZ SRVSAZMADS0  9636 QWEST CORPORATION 668      
520-460 A Tucson AZ   6529 T-MOBILE USA, INC. 668      
520-461 A Tucson AZ TCSNAZ64NMD  7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 668      
520-462 A Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-463 A Whitlow AZ WHTLAZMADS0  9636 QWEST CORPORATION 666      
520-464 A Casa Grande AZ ELOYAZ01RS1  9636 QWEST CORPORATION 666      
520-465 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-466 A Casa Grande AZ ELOYAZ01RS1  9636 QWEST CORPORATION 666      
520-467 A Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-468 A Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-469 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-470 A Nogales AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-471 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-472 A Casa Grande AZ MRCPAZMADS0  9636 QWEST CORPORATION 666      
520-473 A Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-474 A Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-475 A Tucson AZ TCSNAZMAY0X  425J CSC WIRELESS, LLC 668      
520-476 A Tucson AZ TCSNAZMAXAY  478J NUSO, LLC 668      
520-477 A Tucson AZ TCSNAZMAXEY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 668      
520-478 A Ajo AZ PHNXAZMAXYX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
520-479 A Tucson AZ TCSNAZMAX9Y  5736 COMMNET WIRELESS, LLC 668      
520-481 A Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-482 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-483 A Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
520-484 A Tucson AZ TCSNAZMAXUX  551G NUSO, LLC 668      
520-485 A Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-486 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-487 A San Manuel AZ MMTHAZMARS1  9636 QWEST CORPORATION 668      
520-488 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-489 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-490 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-491 A Flagstaff AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
520-492 A Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668      
520-493 A Tucson AZ TCSMAZEE1MD  5727 FIRSTDIGITAL TELECOM, LLC - UT 668      
520-494 A Casa Grande AZ AZCYAZ03RS1  9636 QWEST CORPORATION 666      
520-495 A Tucson AZ TCSMAZSJAMD  7552 LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 668      
520-496 A Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-497 A Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-498 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-499 A Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-500 A Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-501 A Tucson AZ TCSNAZMAXDY  506J TWILIO INTERNATIONAL, INC. 668      
520-502 A Sasabe AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-503 A Willcox AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      

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

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