Local Calling Guide

Area code/prefix search

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NPA: 860 [Rate centres in NPA 860] [Dial plan for NPA 860]

NXX: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
860-663 A Killingworth CT MDSNCT02RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-663 0 Killingworth CT MDSNCT02RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-663 1 Killingworth CT MDSNCT02RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-663 2 Killingworth CT MDSNCT02RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-663 3 Killingworth CT MDSNCT02RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-663 4 Killingworth CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-02-28   
860-663 5 Killingworth CT MDSNCT02RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-663 6 Killingworth CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-02-28   
860-663 7 Killingworth CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920   2014-07-08   
860-663 8 Killingworth CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-08-09   
860-663 9 Killingworth CT HRFRCT03HMD  073H TELNYX LLC 920   2018-05-09   

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

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