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Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
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   

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Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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