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
203-801 A New Canaan CT NWCNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-801 0 New Canaan CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-801 1 New Canaan CT   7230 BROOKS FIBER COMMUNICATIONS OF CONNECTICUT INC-CT 920   2003-11-30   
203-801 2 New Canaan CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-801 3 New Canaan CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-801 4 New Canaan CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-801 5 New Canaan CT   3722 CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC 920   2003-12-01   
203-801 6 New Canaan CT   7421 AT&T LOCAL 920   2003-11-29   
203-801 7 New Canaan CT   7575 CENTURYLINK COMMUNICATIONS LLC 920   2014-07-16   
203-801 8 New Canaan CT   6664 SPRINT SPECTRUM L.P. 920   2002-12-16   
203-801 9 New Canaan CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.