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.

Simsbury, CT

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
860-217 A HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
860-217 0 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
860-217 1 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
860-217 2 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-11   
860-217 3   639C ONVOY, LLC - CT 920   2025-03-08   
860-217 6 NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2022-02-12   
860-217 7 NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2022-02-12   
860-217 8 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-05-06   
860-217 9 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2021-11-21   
860-264 A HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
860-264 0 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-06-26   
860-264 1 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-01-18   
860-264 2 NWHNCT030MD  3722 CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC - CT 920   2002-11-17   
860-264 4 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2003-08-12   
860-264 5 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-09-09   
860-264 6 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-01-21   
860-264 7   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2011-02-17   
860-264 8 WLMNCT132MD  792K CHARTER IP ENABLED SERVICES, LLC 920   2005-01-17   
860-264 9 HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
860-323 A HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
860-323 0 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-08-15   
860-323 1 HRFRCTBC6MD  515J IP HORIZON LLC 920   2024-07-18   
860-323 2 CHSHCT02DS1  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2005-10-13   
860-323 3 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-06-01   
860-323 7 NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920   2013-09-30   
860-323 8 HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-04-28   
860-323 9 HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
860-325 A HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
860-325 0 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
860-325 1 HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
860-325 2 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-03-01   
860-325 3 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2016-07-10   
860-325 4 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2015-05-15   
860-325 5 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2015-08-17   
860-325 7 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2016-08-18   
860-325 8 HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-04-28   
860-325 9 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2025-01-09   
860-392 A HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-392 0 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-392 1 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-392 2 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-392 3 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-392 4 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2012-06-22   
860-392 5 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-392 6 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-392 7 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-392 8 BLFDCTAP2MD  5562 METROPCS, INC. 920   2005-01-17   
860-392 9 BLFDCTAP2MD  5562 METROPCS, INC. 920   2002-12-04   
860-408 A SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-413 A HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
860-413 0 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-02-26   
860-413 1 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-02-26   
860-413 2 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2007-02-01   
860-413 3 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-11-03   
860-413 4 HRFRCT0344Z  866H BARR TEL USA, INC. - CT 920   2022-03-14   
860-413 5 CHSHCT02DS1  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2005-10-13   
860-413 6 NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-12-06   
860-413 7 NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-12-06   
860-413 8 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2018-03-13   
860-413 9 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
860-431 A NWHNCT02X5X  7421 AT&T - LOCAL 920      
860-431 0 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2015-02-14   
860-431 1 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-06-17   
860-431 2 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2016-03-24   
860-431 3 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2016-03-24   
860-431 4 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2017-01-28   
860-431 5 HRFRCT03GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2007-09-07   
860-431 6 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-06-07   
860-431 7 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2018-10-31   
860-431 8 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2018-10-31   
860-431 9 NWHNCT02X5X  7421 AT&T - LOCAL 920      
860-651 A SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-653 A GRNBCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-658 A SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-735 A   829J PAETEC ITEL, LLC 920      
860-735 0 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2019-06-17   
860-735 1 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-08-22   
860-735 2 HRFRCT03CMD  197D VONAGE AMERICA LLC 920   2019-12-09   
860-735 3 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-02-28   
860-735 4 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-02-28   
860-735 5 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-08-22   
860-735 6   829J PAETEC ITEL, LLC 920      
860-735 7   829J PAETEC ITEL, LLC 920      
860-735 8 NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-03-13   
860-735 9 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-03-09   
860-784 A   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2025-04-26   
860-784 0 HRFRCT03HMD  073H TELNYX LLC 920   2018-05-02   
860-784 1 HRFRCT0342Z  3863 CTC COMMUNICATIONS CORP. - CT 920   2004-11-22   
860-784 2 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
860-784 3   145J TERRA NOVA TELECOM INC. 920   2022-12-17   
860-784 4 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-03-04   
860-784 5 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-03-04   
860-784 7 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-03-04   
860-843 A SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-843 0 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-10-01   
860-843 1 SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-843 2 SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-843 3 SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-843 4 SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
860-843 5 SMBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      

1 2 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.