Local Calling Guide

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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
203-779 A Madison CT HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 0 Madison CT   2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 1 Madison CT   2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 2 Madison CT   2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 3 Madison CT   2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 4 Madison CT   2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 5 Madison CT   7621 COMCAST PHONE OF CONNECTICUT, INC. - CT 920   2004-12-18   
203-779 6 Madison CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-05-26   
203-779 7 Madison CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-06-23   
203-779 8 Madison CT   3083 PAETEC COMMUNICATIONS, LLC - CT 920   2009-03-30   
203-779 9 Madison CT   6664 SPRINT SPECTRUM L.P. 920   2002-12-23   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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