Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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
203-617 A Danbury CT WLFRCTXBCM1  6664 SPRINT SPECTRUM L.P. 920   2006-10-27   
203-617 0 Danbury CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-12-03   
203-617 1 Danbury CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-06-26   
203-617 2 Danbury CT   7421 AT&T LOCAL 920   2008-08-11   
203-617 3 Danbury CT   7421 AT&T LOCAL 920   2006-12-30   
203-617 4 Danbury CT   3863 CTC COMMUNICATIONS CORP. - CT 920   2008-09-10   
203-617 5 Danbury CT   6664 SPRINT SPECTRUM L.P. 920   2007-09-13   
203-617 6 Danbury CT   7421 AT&T LOCAL 920   2006-12-30   
203-617 7 Danbury CT   6664 SPRINT SPECTRUM L.P. 920   2007-09-13   
203-617 8 Danbury CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-05-19   
203-617 9 Danbury CT   6664 SPRINT SPECTRUM L.P. 920   2006-10-27   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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