Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: NRWLCT02SMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
203-202 7 Darien CT 612K CSC VOICE, LLC 920      
203-202 9 Darien CT 612K CSC VOICE, LLC 920      
203-210 5 Wilton CT 612K CSC VOICE, LLC 920      
203-210 7 Wilton CT 612K CSC VOICE, LLC 920      
203-212 3 Bridgeport CT 612K CSC VOICE, LLC 920   2010-07-23   
203-220 5 Trumbull CT 612K CSC VOICE, LLC 920      
203-220 9 Trumbull CT 612K CSC VOICE, LLC 920      
203-228 5 Waterbury CT 612K CSC VOICE, LLC 920   2003-07-14   
203-244 A Ridgefield CT 612K CSC VOICE, LLC 920      
203-244 3 Ridgefield CT 612K CSC VOICE, LLC 920   2003-05-19   
203-274 5 Stamford CT 612K CSC VOICE, LLC 920   2003-07-01   
203-274 6 Stamford CT 612K CSC VOICE, LLC 920   2004-03-01   
203-274 7 Stamford CT 612K CSC VOICE, LLC 920   2007-08-10   
203-275 8 Bridgeport CT 612K CSC VOICE, LLC 920   2008-04-11   
203-276 0 Stamford CT 612K CSC VOICE, LLC 920   2003-05-19   
203-276 1 Stamford CT 612K CSC VOICE, LLC 920   2003-05-19   
203-276 9 Stamford CT 612K CSC VOICE, LLC 920   2003-05-19   
203-283 1 Milford CT 612K CSC VOICE, LLC 920      
203-283 3 Milford CT 4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-283 4 Milford CT 612K CSC VOICE, LLC 920      
203-283 5 Milford CT 612K CSC VOICE, LLC 920      
203-283 7 Milford CT 612K CSC VOICE, LLC 920      
203-283 9 Milford CT 4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-286 6 Norwalk CT 612K CSC VOICE, LLC 920   2007-09-20   
203-286 7 Norwalk CT 612K CSC VOICE, LLC 920   2007-09-20   
203-286 8 Norwalk CT 612K CSC VOICE, LLC 920   2007-09-20   
203-290 4 Bridgeport CT 612K CSC VOICE, LLC 920   2014-05-02   
203-292 3 Fairfield CT 612K CSC VOICE, LLC 920      
203-292 5 Fairfield CT 612K CSC VOICE, LLC 920      
203-292 6 Fairfield CT 612K CSC VOICE, LLC 920      
203-292 8 Fairfield CT 612K CSC VOICE, LLC 920      
203-292 9 Fairfield CT 612K CSC VOICE, LLC 920      
203-293 4 Westport CT 612K CSC VOICE, LLC 920   2007-12-07   
203-295 8 Norwalk CT 612K CSC VOICE, LLC 920   2011-05-05   
203-296 1 Bridgeport CT 612K CSC VOICE, LLC 920   2006-04-16   
203-296 2 Bridgeport CT 612K CSC VOICE, LLC 920   2006-04-16   
203-296 4 Bridgeport CT 612K CSC VOICE, LLC 920   2007-04-21   
203-296 9 Bridgeport CT 612K CSC VOICE, LLC 920   2006-04-16   
203-298 4 New Haven CT 612K CSC VOICE, LLC 920      
203-298 9 New Haven CT 612K CSC VOICE, LLC 920      
203-301 4 Milford CT 612K CSC VOICE, LLC 920   2007-11-08   
203-309 5 Darien CT 612K CSC VOICE, LLC 920   2011-08-19   
203-344 1 Old Greenwich CT 612K CSC VOICE, LLC 920      
203-349 5 Westport CT 612K CSC VOICE, LLC 920   2010-09-23   
203-362 5 Bridgeport CT 612K CSC VOICE, LLC 920   2006-02-16   
203-388 8 Stamford CT 612K CSC VOICE, LLC 920   2008-04-11   
203-406 7 Stamford CT 612K CSC VOICE, LLC 920   2010-07-23   
203-502 1 Bridgeport CT 612K CSC VOICE, LLC 920   2005-04-21   
203-504 2 Stamford CT 612K CSC VOICE, LLC 920   2007-09-20   
203-504 8 Stamford CT 612K CSC VOICE, LLC 920   2007-09-20   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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