Local Calling Guide

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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
203-721 A Waterbury CT CHSHCT02DS0  7421 AT&T LOCAL 920      
203-721 0 Waterbury CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2009-10-04   
203-721 1 Waterbury CT   6664 SPRINT SPECTRUM L.P. 920   2005-02-28   
203-721 2 Waterbury CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2008-08-18   
203-721 3 Waterbury CT   6664 SPRINT SPECTRUM L.P. 920   2011-01-13   
203-721 4 Waterbury CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2008-10-30   
203-721 5 Waterbury CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2008-10-30   
203-721 6 Waterbury CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-12-10   
203-721 7 Waterbury CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-07-03   
203-721 8 Waterbury CT   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920   2008-08-01   
203-721 9 Waterbury CT   7421 AT&T LOCAL 920      

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

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