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.

Switch: BLFDCTAP2MD

<< 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 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
475-236 7 Bridgeport CT 5562 METROPCS, INC. 920   2018-04-15   
475-236 8 Bridgeport CT 5562 METROPCS, INC. 920   2018-04-15   
475-236 9 Bridgeport CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2017-11-03   
475-237 8 Danbury CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2018-02-11   
475-239 0 Trumbull CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2013-11-10   
475-239 8 Trumbull CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2015-07-24   
475-241 A New Haven CT 5562 METROPCS, INC. 920      
475-241 5 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2019-09-20   
475-241 8 New Haven CT 5562 METROPCS, INC. 920   2018-10-21   
475-241 9 New Haven CT 5562 METROPCS, INC. 920   2018-09-01   
475-243 6 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2013-10-23   
475-243 8 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2013-08-31   
475-243 9 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2014-07-09   
475-251 1 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2018-10-21   
475-254 3 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2019-09-20   
475-255 4 Meriden CT 5562 METROPCS, INC. 920   2019-07-22   
475-255 5 Meriden CT 5562 METROPCS, INC. 920   2019-07-04   
475-256 A Danbury CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-256 3 Danbury CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2020-03-17   
475-256 8 Danbury CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2019-10-07   
475-256 9 Danbury CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2019-02-23   
475-258 A Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-258 0 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2020-12-06   
475-258 6 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-07-30   
475-258 9 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2019-11-11   
475-259 A Darien CT 5562 METROPCS, INC. 920      
475-259 5 Darien CT 5562 METROPCS, INC. 920   2019-02-01   
475-259 9 Darien CT 5562 METROPCS, INC. 920   2017-11-09   
475-263 7 Waterbury CT 5562 METROPCS, INC. 920   2020-09-03   
475-266 0 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2015-07-26   
475-266 1 Norwalk CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2016-02-06   
475-268 A Stamford CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-268 9 Stamford CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2020-04-16   
475-272 0 Fairfield CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-12-14   
475-273 5 Bridgeport CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2020-09-21   
475-276 A Stamford CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-276 4 Stamford CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-10-08   
475-276 9 Stamford CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-08-16   
475-279 1 Danbury CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2016-02-06   
475-279 2 Danbury CT 5562 METROPCS, INC. 920   2017-10-20   
475-279 5 Danbury CT 5562 METROPCS, INC. 920   2017-07-15   
475-280 A Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-280 0 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-07-30   
475-280 1 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-07-30   
475-280 6 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-07-30   
475-280 7 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-10-08   
475-280 8 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-05-10   
475-280 9 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-05-10   
475-281 A Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-281 1 Ansonia-Derby CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-04-02   

<< 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 >>

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.