Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

  • 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.

Last updated: Fri, 17 May 2013 01:26:12 UTC

How to use this page

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

NXX: 404

NPA-NXX-X Rate Centre Region Switch OCN LATA Eff date Disc date Map
203-404 New Haven CT NWHNCT02Y8X 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 map
203-404-0 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 map
203-404-1 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920
203-404-2 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 2006-02-06
203-404-3 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 2005-01-09
203-404-4 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 2004-07-22
203-404-5 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 2006-04-07
203-404-6 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 2006-09-23
203-404-7 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 2004-12-03
203-404-8 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920 2005-11-03
203-404-9 New Haven CT 9841 BROADWING COMMUNICATIONS, LLC - CT [link] 920


Sponsored by: Callcentric - VoIP Internet phone service