Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: NWHNCT02XJX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
475-274 5 Guilford CT 624H ONVOY SPECTRUM, LLC 920   2021-10-29   
475-274 8 Guilford CT 624H ONVOY SPECTRUM, LLC 920   2021-11-01   
475-276 5 Stamford CT 624H ONVOY SPECTRUM, LLC 920   2021-11-15   
475-276 6 Stamford CT 624H ONVOY SPECTRUM, LLC 920   2021-11-15   
475-276 7 Stamford CT 624H ONVOY SPECTRUM, LLC 920   2021-11-15   
475-277 3 Wilton CT 624H ONVOY SPECTRUM, LLC 920   2022-02-03   
475-281 0 Ansonia-Derby CT 624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-284 6 Bridgeport CT 624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-285 8 Naugatuck CT 624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-286 5 Branford CT 624H ONVOY SPECTRUM, LLC 920   2022-02-12   
475-286 6 Branford CT 624H ONVOY SPECTRUM, LLC 920   2021-12-06   
475-286 7 Branford CT 624H ONVOY SPECTRUM, LLC 920   2021-12-06   
475-286 8 Branford CT 624H ONVOY SPECTRUM, LLC 920   2022-02-12   
475-290 5 Danbury CT 624H ONVOY SPECTRUM, LLC 920   2022-01-22   
475-290 7 Danbury CT 624H ONVOY SPECTRUM, LLC 920   2022-01-22   
475-293 2 Wallingford CT 624H ONVOY SPECTRUM, LLC 920   2021-10-31   
475-294 0 Milford CT 624H ONVOY SPECTRUM, LLC 920   2021-11-25   
475-294 9 Milford CT 624H ONVOY SPECTRUM, LLC 920   2021-11-25   
475-297 5 Newtown CT 624H ONVOY SPECTRUM, LLC 920   2022-01-28   
475-297 7 Newtown CT 624H ONVOY SPECTRUM, LLC 920   2022-01-28   
475-304 2 Huntington CT 624H ONVOY SPECTRUM, LLC 920   2021-12-07   
475-304 3 Huntington CT 624H ONVOY SPECTRUM, LLC 920   2021-12-07   
475-305 6 Waterbury CT 624H ONVOY SPECTRUM, LLC 920   2022-01-22   
475-305 7 Waterbury CT 624H ONVOY SPECTRUM, LLC 920   2022-01-22   
475-307 3 Meriden CT 624H ONVOY SPECTRUM, LLC 920   2022-01-16   
475-307 4 Meriden CT 624H ONVOY SPECTRUM, LLC 920   2022-01-16   
475-307 5 Meriden CT 624H ONVOY SPECTRUM, LLC 920   2022-02-20   
475-308 3 New Haven CT 624H ONVOY SPECTRUM, LLC 920   2022-02-10   
475-308 4 New Haven CT 624H ONVOY SPECTRUM, LLC 920   2022-02-10   
475-310 4 Wallingford CT 624H ONVOY SPECTRUM, LLC 920   2022-01-28   
475-310 5 Wallingford CT 624H ONVOY SPECTRUM, LLC 920   2022-01-28   
475-315 4 Cheshire CT 624H ONVOY SPECTRUM, LLC 920   2022-01-28   
475-315 5 Cheshire CT 624H ONVOY SPECTRUM, LLC 920   2022-01-28   
475-320 1 Ansonia-Derby CT 624H ONVOY SPECTRUM, LLC 920   2022-03-04   
475-320 2 Ansonia-Derby CT 624H ONVOY SPECTRUM, LLC 920   2022-03-04   
475-327 4 Milford CT 624H ONVOY SPECTRUM, LLC 920   2022-03-17   
475-327 5 Milford CT 624H ONVOY SPECTRUM, LLC 920   2022-03-17   
475-332 4 Bridgeport CT 624H ONVOY SPECTRUM, LLC 920   2022-04-18   
475-336 0 Darien CT 624H ONVOY SPECTRUM, LLC 920   2022-02-20   
475-336 1 Darien CT 624H ONVOY SPECTRUM, LLC 920   2022-02-20   
475-351 1 Bridgeport CT 624H ONVOY SPECTRUM, LLC 920   2022-03-18   
475-351 2 Bridgeport CT 624H ONVOY SPECTRUM, LLC 920   2022-03-18   
475-352 1 New Haven CT 624H ONVOY SPECTRUM, LLC 920   2024-04-10   
475-352 3 New Haven CT 624H ONVOY SPECTRUM, LLC 920   2024-04-10   
475-352 4 New Haven CT 624H ONVOY SPECTRUM, LLC 920   2024-04-10   
475-352 5 New Haven CT 624H ONVOY SPECTRUM, LLC 920   2024-04-10   
475-377 9 Waterbury CT 624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-405 0 Cheshire CT 624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-410 A Woodbury CT 624H ONVOY SPECTRUM, LLC 920      
475-410 0 Woodbury CT 624H ONVOY SPECTRUM, LLC 920   2021-04-16   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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