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.
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Switch: NWHNCT02XJX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
475-260 A Huntington CT 624H ONVOY SPECTRUM, LLC 920      
475-410 A Woodbury CT 624H ONVOY SPECTRUM, LLC 920      
959-310 A Bristol CT 624H ONVOY SPECTRUM, LLC 920      
959-410 A Colchester CT 624H ONVOY SPECTRUM, LLC 920      
959-510 A Columbia CT 624H ONVOY SPECTRUM, LLC 920      
959-610 A Harwinton CT 624H ONVOY SPECTRUM, LLC 920      
959-710 A Hartford CT 624H ONVOY SPECTRUM, LLC 920      
959-810 A Moodus CT 624H ONVOY SPECTRUM, LLC 920      
959-910 A Mystic CT 624H ONVOY SPECTRUM, LLC 920      
959-951 A New London CT 624H ONVOY SPECTRUM, LLC 920      
959-952 A Sharon CT 624H ONVOY SPECTRUM, LLC 920      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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