Local Calling Guide

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
475-224 2 New Haven CT 639C ONVOY, LLC - CT 920   2016-04-18   
475-224 3 New Haven CT 639C ONVOY, LLC - CT 920   2016-04-18   
475-224 4 New Haven CT 639C ONVOY, LLC - CT 920   2016-04-18   
475-231 3 Trumbull CT 639C ONVOY, LLC - CT 920   2019-04-22   
475-231 4 Trumbull CT 639C ONVOY, LLC - CT 920   2019-04-22   
475-233 1 Waterbury CT 639C ONVOY, LLC - CT 920   2017-06-09   
475-234 0 New Haven CT 639C ONVOY, LLC - CT 920   2017-06-09   
475-234 2 New Haven CT 639C ONVOY, LLC - CT 920   2017-09-22   
475-234 3 New Haven CT 639C ONVOY, LLC - CT 920   2017-09-22   
475-234 4 New Haven CT 639C ONVOY, LLC - CT 920   2017-09-22   
475-239 5 Trumbull CT 639C ONVOY, LLC - CT 920   2016-04-28   
475-241 0 New Haven CT 639C ONVOY, LLC - CT 920   2019-06-14   
475-241 7 New Haven CT 639C ONVOY, LLC - CT 920   2019-06-27   
475-242 0 Redding CT 639C ONVOY, LLC - CT 920   2019-08-09   
475-242 2 Redding CT 639C ONVOY, LLC - CT 920   2020-02-28   
475-242 3 Redding CT 639C ONVOY, LLC - CT 920   2020-02-28   
475-242 4 Redding CT 639C ONVOY, LLC - CT 920   2020-05-24   
475-242 5 Redding CT 639C ONVOY, LLC - CT 920   2020-05-24   
475-242 6 Redding CT 639C ONVOY, LLC - CT 920   2020-05-24   
475-242 8 Redding CT 639C ONVOY, LLC - CT 920   2019-08-09   
475-244 A Cheshire CT 639C ONVOY, LLC - CT 920      
475-244 1 Cheshire CT 639C ONVOY, LLC - CT 920   2018-04-23   
475-244 6 Cheshire CT 639C ONVOY, LLC - CT 920   2019-03-29   
475-244 7 Cheshire CT 639C ONVOY, LLC - CT 920   2018-10-31   
475-244 8 Cheshire CT 639C ONVOY, LLC - CT 920   2018-10-31   
475-244 9 Cheshire CT 639C ONVOY, LLC - CT 920   2019-03-29   
475-250 1 Norwalk CT 639C ONVOY, LLC - CT 920   2020-08-20   
475-250 2 Norwalk CT 639C ONVOY, LLC - CT 920   2020-08-20   
475-251 2 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2020-05-24   
475-251 3 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2020-05-24   
475-251 4 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2020-08-20   
475-251 7 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2020-08-20   
475-251 8 Ansonia-Derby CT 639C ONVOY, LLC - CT 920   2019-09-01   
475-253 2 Wallingford CT 639C ONVOY, LLC - CT 920   2019-03-18   
475-253 3 Wallingford CT 639C ONVOY, LLC - CT 920   2019-03-18   
475-253 5 Wallingford CT 639C ONVOY, LLC - CT 920   2020-06-21   
475-253 7 Wallingford CT 639C ONVOY, LLC - CT 920   2020-02-28   
475-253 8 Wallingford CT 639C ONVOY, LLC - CT 920   2020-02-28   
475-254 7 New Haven CT 639C ONVOY, LLC - CT 920   2024-08-08   
475-255 0 Meriden CT 639C ONVOY, LLC - CT 920   2019-03-30   
475-255 1 Meriden CT 639C ONVOY, LLC - CT 920   2019-03-30   
475-255 2 Meriden CT 639C ONVOY, LLC - CT 920   2020-08-20   
475-255 3 Meriden CT 639C ONVOY, LLC - CT 920   2020-08-20   
475-255 6 Meriden CT 639C ONVOY, LLC - CT 920   2020-07-05   
475-255 7 Meriden CT 639C ONVOY, LLC - CT 920   2020-07-05   
475-256 0 Danbury CT 639C ONVOY, LLC - CT 920   2019-04-22   
475-256 1 Danbury CT 639C ONVOY, LLC - CT 920   2019-04-22   
475-256 5 Danbury CT 639C ONVOY, LLC - CT 920   2020-02-28   
475-256 6 Danbury CT 639C ONVOY, LLC - CT 920   2020-02-28   
475-258 7 Norwalk CT 639C ONVOY, LLC - CT 920   2020-07-05   

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

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