Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
203-813 3 Byram CT   132   2005-04-22   
203-817 0 Stamford CT   920   2011-12-05   
203-857 1 Norwalk CT   920   2014-05-03   
203-870 0 Bridgeport CT   920      
203-870 1 Bridgeport CT   920      
203-870 4 Bridgeport CT   920   2006-04-10   
203-870 6 Bridgeport CT   920      
203-870 8 Bridgeport CT   920      
203-870 9 Bridgeport CT   920      
203-873 0 Bridgeport CT   920   2007-11-08   
203-883 8 Stamford CT   920   2007-07-13   
203-890 9 Stamford CT   920   2014-05-16   
203-900 A Greenwich CT   132      
203-900 1 Greenwich CT   132   2012-04-23   
203-908 3 Bridgeport CT   920   2007-07-13   
203-908 4 Bridgeport CT   920   2007-07-13   
203-914 A Stamford CT   920      
203-914 1 Stamford CT   920   2012-04-23   
203-916 7 Bridgeport CT   920   2011-04-22   
203-920 1 New Canaan CT   920   2011-08-26   
203-923 1 Bridgeport CT   920   2006-02-16   
203-923 2 Bridgeport CT   920   2005-03-10   
203-923 8 Bridgeport CT   920   2005-03-10   
203-939 A Norwalk CT   920      
203-939 1 Norwalk CT   920   2008-08-28   
203-939 9 Norwalk CT   920   2012-09-28   
203-955 1 Fairfield CT   920   2011-04-22   
203-956 0 Norwalk CT   920   2006-06-19   
203-957 A Norwalk CT   920      
203-957 3 Norwalk CT   920   2011-07-22   
203-957 8 Norwalk CT   920   2013-04-05   
203-990 0 Old Greenwich CT   920   2007-11-16   
203-990 3 Old Greenwich CT   920   2013-09-14   
203-992 A Greenwich CT   132      
203-992 1 Greenwich CT   132   2006-07-03   
203-998 7 Stamford CT   920   2013-08-09   
332-298 A New York City Zone 01 NY   132   2025-09-26   
332-298 4 New York City Zone 01 NY   132   2025-09-26   
475-209 9 New Haven CT   920   2014-12-05   
475-282 4 Bridgeport CT   920   2013-04-02   
475-282 9 Bridgeport CT   920   2012-09-28   
475-328 9 Darien CT   920   2014-08-22   
475-330 A Fairfield CT   920      
475-330 1 Fairfield CT   920   2015-08-01   
475-396 A Bridgeport CT   920   2025-10-02   
475-396 4 Bridgeport CT   920   2025-10-02   
475-422 9 Bridgeport CT   920   2013-04-15   
475-449 9 Bridgeport CT   920   2014-12-20   
475-549 8 Milford CT   920   2015-06-22   
475-558 9 New Canaan CT   920   2015-06-26   
475-619 5 Stamford CT   920   2015-07-25   
475-619 9 Stamford CT   920   2015-04-03   
475-888 9 Fairfield CT   920   2015-06-13   
475-897 A Greenwich CT   132      
475-897 1 Greenwich CT   132   2015-08-06   
475-999 8 Fairfield CT   920   2013-07-06   
609-208 3 Allentown NJ   222   2011-07-15   
609-223 0 Allentown NJ   222   2004-07-11   
609-223 2 Allentown NJ   222   2004-07-11   
609-228 3 Princeton NJ   222   2004-07-11   
609-245 8 Mercerville NJ   222   2011-10-13   
609-249 4 Mercerville NJ   222   2013-05-04   
609-281 2 Pennington NJ   222   2004-07-08   
609-301 7 Hightstown NJ   222   2007-12-12   
609-323 4 Ewing NJ   222   2004-07-11   
609-336 A Hightstown NJ   222      
609-336 0 Hightstown NJ   222   2004-07-11   
609-341 8 Trenton NJ   222   2006-10-19   
609-424 5 Bordentown NJ   222   2004-07-11   
609-438 9 Mercerville NJ   222   2015-11-30   
609-450 2 Lawrenceville NJ   222   2004-07-11   
609-508 A Trenton NJ   222      
609-508 1 Trenton NJ   222   2012-04-22   
609-521 0 Fort Dix NJ   222   2004-07-11   
609-528 0 Mercerville NJ   222   2007-07-22   
609-570 5 Mercerville NJ   222   2007-08-03   
609-570 8 Mercerville NJ   222   2008-10-17   
609-738 3 New Egypt NJ   222   2004-07-11   
609-785 A Plainsboro NJ   222      
609-785 9 Plainsboro NJ   222      
609-834 A Hightstown NJ   222      
609-834 1 Hightstown NJ   222   2015-07-23   
609-838 0 Mercerville NJ   222   2004-07-11   
609-838 1 Mercerville NJ   222   2006-09-23   
609-838 2 Mercerville NJ   222   2005-01-22   
609-838 7 Mercerville NJ   222   2005-01-22   
609-838 9 Mercerville NJ   222   2007-04-22   
609-931 A Trenton NJ   222      
609-931 0 Trenton NJ   222      
609-931 9 Trenton NJ   222      
609-981 7 Mercerville NJ   222   2011-07-01   
856-657 A Camden NJ   222   2025-09-26   
856-657 4 Camden NJ   222   2025-09-26   
860-201 4 Torrington CT   920   2007-08-10   
860-201 5 Torrington CT   920   2007-09-20   
860-238 5 Winsted CT   920   2003-07-14   
860-248 3 Cornwall CT   920   2003-07-01   
860-361 6 Litchfield CT   920      
860-361 9 Litchfield CT   920      
860-417 2 Watertown CT   920   2007-11-17   

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Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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