Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-367 A Byram CT   639C ONVOY, LLC - CT 132   2024-05-19   
475-367 0 Byram CT   639C ONVOY, LLC - CT 132   2024-05-19   
475-367 1 Byram CT   639C ONVOY, LLC - CT 132   2024-06-22   
475-368 A Darien CT   639C ONVOY, LLC - CT 920   2024-06-22   
475-368 0 Darien CT   639C ONVOY, LLC - CT 920   2024-06-22   
475-369 A Huntington CT   639C ONVOY, LLC - CT 920   2024-07-06   
475-369 0 Huntington CT   639C ONVOY, LLC - CT 920   2024-07-06   
475-370 A Danbury CT   490J DISH WIRELESS, LLC 920   2024-07-21   
475-370 0 Danbury CT   490J DISH WIRELESS, LLC 920   2024-07-21   
475-370 1 Danbury CT   490J DISH WIRELESS, LLC 920   2024-08-08   
475-371 A New Canaan CT   490J DISH WIRELESS, LLC 920   2024-07-21   
475-371 0 New Canaan CT   490J DISH WIRELESS, LLC 920   2024-07-21   
475-371 1 New Canaan CT   490J DISH WIRELESS, LLC 920   2024-08-01   
475-375 A New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-375 0 New Haven CT   639C ONVOY, LLC - CT 920   2024-02-09   
475-375 1 New Haven CT   639C ONVOY, LLC - CT 920   2024-02-09   
475-375 2 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-18   
475-375 3 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-18   
475-375 4 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-18   
475-375 5 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-09-25   
475-375 6 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-09-25   
475-375 7 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-09-25   
475-375 8 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-19   
475-375 9 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-19   
475-377 A Waterbury CT HRFRCT03XOX  965H FRACTEL, LLC 920      
475-377 0 Waterbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-02-05   
475-377 1 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2021-02-18   
475-377 2 Waterbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2022-02-10   
475-377 3 Waterbury CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-03-01   
475-377 4 Waterbury CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-03-01   
475-377 5 Waterbury CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-03-01   
475-377 6 Waterbury CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-03-01   
475-377 7 Waterbury CT HRFRCT03XOX  965H FRACTEL, LLC 920   2020-09-17   
475-377 8 Waterbury CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-05-06   
475-377 9 Waterbury CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-382 A Branford CT HRFRCT03XSX  516J TON80 COMMUNICATIONS, LLC 920      
475-382 0 Branford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-11   
475-382 1 Branford CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2023-06-11   
475-382 2 Branford CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2023-06-11   
475-382 3 Branford CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2023-06-11   
475-382 4 Branford CT HRFRCT03XSX  516J TON80 COMMUNICATIONS, LLC 920   2022-03-26   
475-382 5 Branford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-06-26   
475-382 6 Branford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-18   
475-382 7 Branford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-18   
475-382 8 Branford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-18   
475-382 9 Branford CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2023-07-14   
475-393 A Norwalk CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-393 0 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2017-12-14   
475-393 1 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2018-01-02   
475-393 2 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2018-01-02   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 >>

Last updated: Sat, 01 Jun 2024 11:59:14 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.