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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Harwinton, CT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
860-307 A MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-309 A MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-485 A TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-485 0 TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-485 1 TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-485 2 TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-485 3 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-485 4 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-485 5 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-485 6 TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-485 7 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-07-06   
860-485 8 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-485 9 TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-605 A HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-605 0 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2003-09-17   
860-605 1 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-605 2 HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920   2003-06-18   
860-605 3 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2003-10-26   
860-605 4 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2003-10-26   
860-605 5 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2004-03-06   
860-605 6 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2004-03-06   
860-605 7 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2004-03-06   
860-605 8 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-12-11   
860-605 9 WLMNCT132MD  792K CHARTER IP ENABLED SERVICES, LLC 920   2005-01-17   
860-689 A TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-689 0 TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-689 1 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-07-06   
860-689 2 TRTNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-689 3 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-689 4 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-12-11   
860-689 5 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-02-12   
860-689 6 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2008-07-23   
860-689 7 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2013-09-06   
860-689 8 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2020-03-24   
860-689 9 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2020-03-24   
860-733 A SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
860-733 0 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-19   
860-733 1 HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   
860-733 2 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-02-12   
860-733 3 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-12-19   
860-733 4 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
860-733 5 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-12-19   
860-733 6 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2015-05-18   
860-733 7 NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920   2014-07-09   
860-733 8 HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   
860-733 9 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-10-31   
860-782 A SMFRCTQI9MD  3493 GLOBAL CROSSING LOCAL SERVICES, INC. - CT 920      
860-782 0 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
860-782 1 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-02-12   
860-782 2 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
860-782 4 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-08-09   
860-782 5 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2020-03-21   
860-782 6 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-08-09   
860-782 7 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2019-09-26   
860-782 8 HRFRCT03HMD  073H TELNYX LLC 920   2018-05-02   
860-782 9 SMFRCTQI9MD  3493 GLOBAL CROSSING LOCAL SERVICES, INC. - CT 920      
860-795 A HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
860-795 0 HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
860-795 1 HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
860-795 2 HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
860-795 3 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2019-08-09   
860-795 4 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2017-12-16   
860-795 5 HRFRCT03GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2011-04-26   
860-795 6 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2017-10-21   
860-795 7 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-07-16   
860-795 8 HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
860-795 9 HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
860-806 A MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-806 0 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-806 1 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-806 2 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-806 3 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2010-09-09   
860-806 4 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2009-11-07   
860-806 5 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-06-12   
860-806 6 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2013-12-06   
860-806 7 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-07-18   
860-806 8 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-06-12   
860-806 9 MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2014-12-07   
959-610 A NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920      
959-610 0 NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-04-17   
959-610 1 HRFRCT0389Z  490J DISH WIRELESS, LLC 920   2022-12-20   
959-610 3 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-04-18   
959-610 4 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-04-18   
959-610 5 NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2022-02-20   
959-610 8 HRFRCTBC6MD  515J IP HORIZON LLC 920   2024-07-15   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.