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: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-806 A Cheshire CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-806 0 Cheshire CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
203-806 1 Cheshire CT   7621 COMCAST PHONE OF CONNECTICUT, INC. - CT 920   2017-10-26   
203-806 2 Cheshire CT   7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-806 3 Cheshire CT   3863 CTC COMMUNICATIONS CORP. - CT 920   2006-10-16   
203-806 4 Cheshire CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-05-20   
203-806 5 Cheshire CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-806 6 Cheshire CT   7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-806 7 Cheshire CT   639C ONVOY, LLC - CT 920   2016-03-11   
203-806 8 Cheshire CT   7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-806 9 Cheshire CT   639C ONVOY, LLC - CT 920   2016-03-11   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.