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: HRFRCTBCDS1

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
475-317 7 New Haven CT 639C ONVOY, LLC - CT 920   2024-02-09   
475-318 7 New Haven CT 639C ONVOY, LLC - CT 920   2023-06-26   
475-318 8 New Haven CT 639C ONVOY, LLC - CT 920   2023-06-12   
475-318 9 New Haven CT 639C ONVOY, LLC - CT 920   2023-06-26   
475-320 3 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2022-01-18   
475-320 4 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2022-01-18   
475-323 4 Newtown CT 639C ONVOY, LLC - CT 920   2019-08-09   
475-323 6 Newtown CT 639C ONVOY, LLC - CT 920   2019-08-09   
475-324 A Trumbull CT 639C ONVOY, LLC - CT 920      
475-324 0 Trumbull CT 639C ONVOY, LLC - CT 920   2024-02-29   
475-324 1 Trumbull CT 639C ONVOY, LLC - CT 920   2024-02-29   
475-324 2 Trumbull CT 639C ONVOY, LLC - CT 920   2023-08-26   
475-324 6 Trumbull CT 639C ONVOY, LLC - CT 920   2025-01-09   
475-324 7 Trumbull CT 639C ONVOY, LLC - CT 920   2024-07-12   
475-324 8 Trumbull CT 639C ONVOY, LLC - CT 920   2024-02-29   
475-324 9 Trumbull CT 639C ONVOY, LLC - CT 920   2024-07-12   
475-325 2 Georgetown CT 639C ONVOY, LLC - CT 920   2015-05-09   
475-325 5 Georgetown CT 639C ONVOY, LLC - CT 920   2019-08-09   
475-325 6 Georgetown CT 639C ONVOY, LLC - CT 920   2019-08-09   
475-326 2 Waterbury CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-326 3 Waterbury CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-326 4 Waterbury CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-326 5 Waterbury CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-326 6 Waterbury CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-326 7 Waterbury CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-327 0 Milford CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-327 1 Milford CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-327 2 Milford CT 639C ONVOY, LLC - CT 920   2023-06-05   
475-327 3 Milford CT 639C ONVOY, LLC - CT 920   2023-07-14   
475-327 8 Milford CT 639C ONVOY, LLC - CT 920   2023-07-14   
475-327 9 Milford CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-328 4 Darien CT 639C ONVOY, LLC - CT 920   2015-05-08   
475-330 2 Fairfield CT 639C ONVOY, LLC - CT 920   2020-07-05   
475-330 3 Fairfield CT 639C ONVOY, LLC - CT 920   2020-07-05   
475-330 5 Fairfield CT 639C ONVOY, LLC - CT 920   2021-08-01   
475-330 7 Fairfield CT 639C ONVOY, LLC - CT 920   2021-08-01   
475-332 3 Bridgeport CT 639C ONVOY, LLC - CT 920   2023-07-14   
475-333 0 Stamford CT 639C ONVOY, LLC - CT 920   2017-06-09   
475-334 A Stamford CT 639C ONVOY, LLC - CT 920      
475-334 0 Stamford CT 639C ONVOY, LLC - CT 920   2023-09-22   
475-334 1 Stamford CT 639C ONVOY, LLC - CT 920   2023-09-22   
475-334 2 Stamford CT 639C ONVOY, LLC - CT 920   2023-09-11   
475-334 3 Stamford CT 639C ONVOY, LLC - CT 920   2023-09-22   
475-336 2 Darien CT 639C ONVOY, LLC - CT 920   2021-08-08   
475-336 3 Darien CT 639C ONVOY, LLC - CT 920   2020-11-22   
475-336 4 Darien CT 639C ONVOY, LLC - CT 920   2021-03-04   
475-336 5 Darien CT 639C ONVOY, LLC - CT 920   2021-03-04   
475-336 6 Darien CT 639C ONVOY, LLC - CT 920   2020-11-22   
475-336 7 Darien CT 639C ONVOY, LLC - CT 920   2021-08-08   
475-337 4 Waterbury CT 639C ONVOY, LLC - CT 920   2023-07-14   
475-337 5 Waterbury CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-338 0 Branford CT 639C ONVOY, LLC - CT 920   2018-04-06   
475-338 3 Branford CT 639C ONVOY, LLC - CT 920   2020-07-05   
475-338 4 Branford CT 639C ONVOY, LLC - CT 920   2021-03-04   
475-338 5 Branford CT 639C ONVOY, LLC - CT 920   2021-03-04   
475-338 7 Branford CT 639C ONVOY, LLC - CT 920   2019-03-29   
475-338 8 Branford CT 639C ONVOY, LLC - CT 920   2018-01-04   
475-338 9 Branford CT 639C ONVOY, LLC - CT 920   2019-03-29   
475-339 6 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2024-02-24   
475-339 7 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2023-08-11   
475-340 A Old Greenwich CT 639C ONVOY, LLC - CT 920      
475-340 0 Old Greenwich CT 639C ONVOY, LLC - CT 920   2024-01-07   
475-340 2 Old Greenwich CT 639C ONVOY, LLC - CT 920   2023-11-05   
475-342 6 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2024-02-24   
475-342 7 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2023-06-26   
475-343 5 Meriden CT 639C ONVOY, LLC - CT 920   2015-05-08   
475-344 2 Bridgeport CT 639C ONVOY, LLC - CT 920   2024-02-04   
475-344 3 Bridgeport CT 639C ONVOY, LLC - CT 920   2024-02-04   
475-344 5 Bridgeport CT 639C ONVOY, LLC - CT 920   2024-02-04   
475-344 6 Bridgeport CT 639C ONVOY, LLC - CT 920   2024-02-04   
475-346 A Stamford CT 639C ONVOY, LLC - CT 920   2024-02-11   
475-346 0 Stamford CT 639C ONVOY, LLC - CT 920   2024-02-11   
475-346 2 Stamford CT 639C ONVOY, LLC - CT 920   2024-02-11   
475-346 3 Stamford CT 639C ONVOY, LLC - CT 920   2024-07-01   
475-347 0 Meriden CT 639C ONVOY, LLC - CT 920   2024-02-26   
475-347 1 Meriden CT 639C ONVOY, LLC - CT 920   2024-02-26   
475-347 8 Meriden CT 639C ONVOY, LLC - CT 920   2024-02-26   
475-348 7 Danbury CT 639C ONVOY, LLC - CT 920   2020-06-21   
475-348 8 Danbury CT 639C ONVOY, LLC - CT 920   2020-06-21   
475-349 0 Bridgeport CT 639C ONVOY, LLC - CT 920   2024-04-20   
475-349 1 Bridgeport CT 639C ONVOY, LLC - CT 920   2024-06-07   
475-352 A New Haven CT 639C ONVOY, LLC - CT 920   2024-03-15   
475-352 0 New Haven CT 639C ONVOY, LLC - CT 920   2024-03-15   
475-352 2 New Haven CT 639C ONVOY, LLC - CT 920   2024-03-15   
475-353 0 Fairfield CT 639C ONVOY, LLC - CT 920   2024-03-17   
475-353 1 Fairfield CT 639C ONVOY, LLC - CT 920   2024-03-17   
475-353 2 Fairfield CT 639C ONVOY, LLC - CT 920   2024-04-12   
475-353 3 Fairfield CT 639C ONVOY, LLC - CT 920   2024-04-12   
475-353 8 Fairfield CT 639C ONVOY, LLC - CT 920   2024-03-17   
475-354 A Waterbury CT 639C ONVOY, LLC - CT 920   2024-03-29   
475-354 0 Waterbury CT 639C ONVOY, LLC - CT 920   2024-03-29   
475-354 1 Waterbury CT 639C ONVOY, LLC - CT 920   2024-03-29   
475-354 2 Waterbury CT 639C ONVOY, LLC - CT 920   2024-03-29   
475-354 3 Waterbury CT 639C ONVOY, LLC - CT 920   2024-03-29   
475-354 4 Waterbury CT 639C ONVOY, LLC - CT 920   2024-03-29   
475-354 5 Waterbury CT 639C ONVOY, LLC - CT 920   2024-03-29   
475-356 8 Bridgeport CT 639C ONVOY, LLC - CT 920   2023-10-14   
475-357 A Milford CT 639C ONVOY, LLC - CT 920   2024-04-04   
475-357 0 Milford CT 639C ONVOY, LLC - CT 920   2024-04-04   
475-357 1 Milford CT 639C ONVOY, LLC - CT 920   2024-04-04   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.