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.

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

NXX: 499

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
860-499 A Cornwall CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
860-499 0 Cornwall CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
860-499 1 Cornwall CT   073H TELNYX LLC 920   2018-05-02   
860-499 3 Cornwall CT   639C ONVOY, LLC - CT 920   2020-07-06   
860-499 4 Cornwall CT   639C ONVOY, LLC - CT 920   2020-07-06   
860-499 5 Cornwall CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-01-09   
860-499 7 Cornwall CT   508J CENTURYLINK COMMUNICATIONS, LLC 920   2014-07-09   
860-499 8 Cornwall CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-10-23   
860-499 9 Cornwall CT   7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.