Local Calling Guide

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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 344

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-344 A Old Greenwich CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-344 0 Old Greenwich CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-10-15   
203-344 1 Old Greenwich CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-344 2 Old Greenwich CT NWHNCT02GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2007-03-01   
203-344 3 Old Greenwich CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-344 4 Old Greenwich CT   145J TERRA NOVA TELECOM INC. 920   2022-10-18   
203-344 5 Old Greenwich CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-07-03   
203-344 6 Old Greenwich CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-344 7 Old Greenwich CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-04-29   
203-344 8 Old Greenwich CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2012-10-22   
203-344 9 Old Greenwich CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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