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

How to use this page

NPA: 860 [Rate centres in NPA 860] [Dial plan for NPA 860]

NXX: 639

NPA-NXX-X Rate Centre Region Switch OCN LATA Eff date Disc date Map
860-639 Norwich CT SMFRCTATW51 3083 PAETEC COMMUNICATIONS, INC. - CT [link] 920 map
860-639-0 Norwich CT 6664 SPRINT SPECTRUM L.P. [link] 920 2005-01-17 map
860-639-1 Norwich CT 6664 SPRINT SPECTRUM L.P. [link] 920 2004-03-03
860-639-2 Norwich CT 7421 AT&T LOCAL [link] 920 2001-11-13
860-639-3 Norwich CT 6664 SPRINT SPECTRUM L.P. [link] 920 2004-12-29
860-639-4 Norwich CT 6664 SPRINT SPECTRUM L.P. [link] 920 2004-07-30
860-639-5 Norwich CT 3083 PAETEC COMMUNICATIONS, INC. - CT [link] 920
860-639-6 Norwich CT 6664 SPRINT SPECTRUM L.P. [link] 920 2003-09-09
860-639-7 Norwich CT 6664 SPRINT SPECTRUM L.P. [link] 920 2003-11-17
860-639-8 Norwich CT 6664 SPRINT SPECTRUM L.P. [link] 920 2002-12-04
860-639-9 Norwich CT 6664 SPRINT SPECTRUM L.P. [link] 920 2002-12-04


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