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NPA: 475 [Rate centres in NPA 475] [Dial plan for NPA 475]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-352 A New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-03-15   
475-353 A Fairfield CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-03-16   
475-354 A Waterbury CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-03-29   
475-355 A New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-356 A Bridgeport CT HRFRCT03XOX  965H FRACTEL, LLC 920      
475-357 A Milford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-04   
475-358 A Branford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-06   
475-359 A Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-360 A Newtown CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-07   
475-361 A Cheshire CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-07   
475-362 A Seymour CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-22   
475-363 A Westport CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-22   
475-364 A Woodbury CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-22   
475-365 A New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-05-19   
475-366 A Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-04-27   
475-367 A Byram CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-05-19   
475-368 A Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-06-22   
475-369 A Huntington CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-07-06   
475-370 A Danbury CT HRFRCT0389Z  490J BOOST SUBSCRIBERCO L.L.C. 920   2024-07-21   
475-371 A New Canaan CT HRFRCT0389Z  490J BOOST SUBSCRIBERCO L.L.C. 920   2024-07-21   
475-372 A New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-08-09   
475-373 A Bridgeport CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-08-12   
475-374 A Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-10-27   
475-375 A New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-376 A Newtown CT HRFRCT034MD  839J EON TELECOM, INC. 920   2024-11-28   
475-377 A Waterbury CT HRFRCT03XOX  965H FRACTEL, LLC 920      
475-378 A New Canaan CT HRFRCT034MD  839J EON TELECOM, INC. 920   2024-11-28   
475-379 A New Haven CT HRFRCT034MD  839J EON TELECOM, INC. 920   2024-11-28   
475-380 A Danbury CT HRFRCT034MD  839J EON TELECOM, INC. 920   2024-11-30   
475-381 A Wallingford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-12-05   
475-382 A Branford CT HRFRCT03XSX  516J TON80 COMMUNICATIONS, LLC 920      
475-383 A Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2025-01-12   
475-384 A New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2025-01-12   
475-385 A Stamford CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2025-02-22   
475-386 A Trumbull CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2025-03-24   
475-387 A New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2025-03-24   
475-388 A Stamford CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2025-03-24   
475-389 A Waterbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2025-03-24   
475-390 A New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2025-05-23   
475-391 A Bridgeport CT   639C ONVOY, LLC - CT 920   2025-05-30   
475-392 A New Haven CT   639C ONVOY, LLC - CT 920   2025-06-07   
475-393 A Norwalk CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-394 A Ansonia-Derby CT   7421 AT&T - LOCAL 920   2025-09-25   
475-395 A Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-396 A Bridgeport CT   612K CSC VOICE, LLC 920   2025-10-02   
475-397 A Norwalk CT   4950 CABLEVISION LIGHTPATH, INC. - CT 920   2025-12-11   
475-398 A Huntington CT   639C ONVOY, LLC - CT 920   2026-02-02   
475-399 A Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-400 A Stamford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-405 A Cheshire CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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