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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-316 A Waterbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-316 0 Waterbury CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2022-06-18   
475-316 1 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2022-03-18   
475-316 2 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2022-03-18   
475-316 3 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2022-03-18   
475-316 4 Waterbury CT   515J IP HORIZON LLC 920   2022-07-08   
475-316 5 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2022-09-25   
475-316 6 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2022-09-25   
475-316 7 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2022-09-25   
475-316 8 Waterbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2022-03-17   
475-316 9 Waterbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2022-03-17   
475-317 A New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-317 0 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-06-26   
475-317 1 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-02-21   
475-317 2 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-02-21   
475-317 3 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-02-21   
475-317 4 New Haven CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2024-01-26   
475-317 5 New Haven CT   639C ONVOY, LLC - CT 920   2024-02-09   
475-317 6 New Haven CT   639C ONVOY, LLC - CT 920   2024-02-09   
475-317 7 New Haven CT   639C ONVOY, LLC - CT 920   2024-02-09   
475-317 8 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2024-03-15   
475-317 9 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2023-02-20   
475-318 A New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-318 0 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-03-31   
475-318 1 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-12-14   
475-318 2 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-12-14   
475-318 3 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-12-14   
475-318 4 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-12-14   
475-318 5 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-12-14   
475-318 6 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-09-22   
475-318 7 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-06-26   
475-318 8 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-06-12   
475-318 9 New Haven CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-06-26   
475-319 A Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-319 0 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2016-12-01   
475-319 1 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2017-01-16   
475-319 2 Bridgeport CT SMFRCT0162Z  3863 CTC COMMUNICATIONS CORP. - CT 920   2017-10-24   
475-319 3 Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2017-01-20   
475-319 4 Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2017-06-16   
475-319 5 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2017-07-31   
475-319 6 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2017-08-28   
475-319 7 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2017-09-18   
475-319 8 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2017-09-12   
475-319 9 Bridgeport CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2020-11-09   
475-320 A Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-320 0 Ansonia-Derby CT   515J IP HORIZON LLC 920   2022-07-22   
475-320 1 Ansonia-Derby CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2022-03-04   
475-320 2 Ansonia-Derby CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2022-03-04   
475-320 3 Ansonia-Derby CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-01-18   
475-320 4 Ansonia-Derby CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-01-18   

<< 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 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.