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.
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Last updated: Thu, 17 Apr 2014 10:04:41 UTC

How to use this page

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

NXX: 404

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
203-404 A 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
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



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