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
203-437 A Waterbury CT   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
203-437 0 Waterbury CT   6664 SPRINT SPECTRUM L.P. 920   2003-10-11   
203-437 1 Waterbury CT   6664 SPRINT SPECTRUM L.P. 920   2003-10-11   
203-437 2 Waterbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2003-12-06   
203-437 3 Waterbury CT   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
203-437 4 Waterbury CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2003-03-02   
203-437 5 Waterbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2004-02-15   
203-437 6 Waterbury CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-19   
203-437 7 Waterbury CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-10-27   
203-437 8 Waterbury CT   7621 COMCAST PHONE OF CONNECTICUT, INC. - CT 920   2009-08-31   
203-437 9 Waterbury CT   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      

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

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