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
203-870 8 Bridgeport CT 612K CSC VOICE, LLC 920      
203-870 9 Bridgeport CT 612K CSC VOICE, LLC 920      
203-873 0 Bridgeport CT 612K CSC VOICE, LLC 920   2007-11-08   
203-883 8 Stamford CT 612K CSC VOICE, LLC 920   2007-07-13   
203-890 9 Stamford CT 612K CSC VOICE, LLC 920   2014-05-16   
203-908 3 Bridgeport CT 612K CSC VOICE, LLC 920   2007-07-13   
203-908 4 Bridgeport CT 612K CSC VOICE, LLC 920   2007-07-13   
203-916 7 Bridgeport CT 612K CSC VOICE, LLC 920   2011-04-22   
203-920 1 New Canaan CT 612K CSC VOICE, LLC 920   2011-08-26   
203-923 1 Bridgeport CT 612K CSC VOICE, LLC 920   2006-02-16   
203-923 2 Bridgeport CT 612K CSC VOICE, LLC 920   2005-03-10   
203-923 8 Bridgeport CT 612K CSC VOICE, LLC 920   2005-03-10   
203-939 A Norwalk CT 612K CSC VOICE, LLC 920      
203-939 1 Norwalk CT 612K CSC VOICE, LLC 920   2008-08-28   
203-939 9 Norwalk CT 612K CSC VOICE, LLC 920   2012-09-28   
203-955 1 Fairfield CT 612K CSC VOICE, LLC 920   2011-04-22   
203-956 0 Norwalk CT 612K CSC VOICE, LLC 920   2006-06-19   
203-957 3 Norwalk CT 612K CSC VOICE, LLC 920   2011-07-22   
203-957 8 Norwalk CT 612K CSC VOICE, LLC 920   2013-04-05   
203-990 0 Old Greenwich CT 612K CSC VOICE, LLC 920   2007-11-16   
203-990 3 Old Greenwich CT 612K CSC VOICE, LLC 920   2013-09-14   
203-998 7 Stamford CT 612K CSC VOICE, LLC 920   2013-08-09   
475-209 9 New Haven CT 612K CSC VOICE, LLC 920   2014-12-05   
475-282 4 Bridgeport CT 612K CSC VOICE, LLC 920   2013-04-02   
475-282 9 Bridgeport CT 612K CSC VOICE, LLC 920   2012-09-28   
475-328 9 Darien CT 612K CSC VOICE, LLC 920   2014-08-22   
475-422 9 Bridgeport CT 612K CSC VOICE, LLC 920   2013-04-15   
475-449 9 Bridgeport CT 612K CSC VOICE, LLC 920   2014-12-20   
475-549 8 Milford CT 612K CSC VOICE, LLC 920   2015-06-22   
475-558 9 New Canaan CT 612K CSC VOICE, LLC 920   2015-06-26   
475-619 5 Stamford CT 612K CSC VOICE, LLC 920   2015-07-25   
475-619 9 Stamford CT 612K CSC VOICE, LLC 920   2015-04-03   
475-888 9 Fairfield CT 612K CSC VOICE, LLC 920   2015-06-13   
475-999 8 Fairfield CT 612K CSC VOICE, LLC 920   2013-07-06   
860-201 4 Torrington CT 612K CSC VOICE, LLC 920   2007-08-10   
860-201 5 Torrington CT 612K CSC VOICE, LLC 920   2007-09-20   
860-238 5 Winsted CT 612K CSC VOICE, LLC 920   2003-07-14   
860-248 3 Cornwall CT 612K CSC VOICE, LLC 920   2003-07-01   
860-361 6 Litchfield CT 612K CSC VOICE, LLC 920      
860-361 9 Litchfield CT 612K CSC VOICE, LLC 920      
860-417 2 Watertown CT 612K CSC VOICE, LLC 920   2007-11-17   
860-417 3 Watertown CT 612K CSC VOICE, LLC 920   2003-06-30   
860-417 6 Watertown CT 612K CSC VOICE, LLC 920   2006-08-10   
860-484 4 Thomaston CT 612K CSC VOICE, LLC 920   2003-07-01   
860-618 0 Torrington CT 612K CSC VOICE, LLC 920   2005-04-21   
860-618 2 Torrington CT 612K CSC VOICE, LLC 920   2004-10-28   
860-618 3 Torrington CT 612K CSC VOICE, LLC 920   2003-06-25   
860-618 5 Torrington CT 612K CSC VOICE, LLC 920   2004-10-06   
860-618 7 Torrington CT 612K CSC VOICE, LLC 920   2012-11-12   
860-619 8 Washington CT 612K CSC VOICE, LLC 920   2003-12-23   

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

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