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: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
860-640 A Windsor CT   829J PAETEC ITEL, LLC 920      
860-640 0 Windsor CT   829J PAETEC ITEL, LLC 920      
860-640 1 Windsor CT   829J PAETEC ITEL, LLC 920      
860-640 2 Windsor CT   829J PAETEC ITEL, LLC 920      
860-640 3 Windsor CT HRFRCT03GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-07-07   
860-640 4 Windsor CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-09-12   
860-640 5 Windsor CT   829J PAETEC ITEL, LLC 920   2007-06-26   
860-640 6 Windsor CT   829J PAETEC ITEL, LLC 920   2005-08-29   
860-640 8 Windsor CT   829J PAETEC ITEL, LLC 920      
860-640 9 Windsor CT   829J PAETEC ITEL, LLC 920      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.