Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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OCN: 612K CSC VOICE, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
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   
551-224 8 Fair Lawn NJ   224   2015-09-18   
551-264 9 Ramsey NJ   224   2015-11-07   
551-319 2 Wyckoff NJ   224   2018-12-03   
551-500 9 Ramsey NJ   224   2014-10-24   
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   
732-200 5 Dunellen NJ   224   2007-10-06   
732-202 8 Point Pleasant NJ   224   2002-03-21   
732-217 1 Keyport NJ   224   2008-10-17   
732-234 3 South River NJ   224   2003-07-07   
732-234 6 South River NJ   224   2004-11-29   
732-242 9 Matawan NJ   224   2007-10-26   
732-243 9 Metuchen NJ   224   2013-04-05   
732-250 A Seaside Park NJ   224      
732-250 1 Seaside Park NJ   224   2014-06-27   
732-250 2 Seaside Park NJ   224   2008-06-05   
732-250 4 Seaside Park NJ   224   2011-07-01   
732-250 6 Seaside Park NJ   224   2006-07-30   
732-250 8 Seaside Park NJ   224   2012-06-29   
732-252 5 Freehold NJ   224   2003-02-14   
732-252 6 Freehold NJ   224   2004-07-17   
732-252 8 Freehold NJ   224   2004-11-29   
732-252 9 Freehold NJ   224   2007-04-04   
732-253 0 New Brunswick NJ   224   2005-09-09   
732-253 7 New Brunswick NJ   224   2005-02-27   
732-256 4 Farmingdale NJ   224   2003-02-14   
732-256 9 Farmingdale NJ   224   2007-05-05   
732-275 8 Middletown NJ   224   2002-03-21   
732-276 5 Lakewood NJ   224   2004-08-27   
732-276 6 Lakewood NJ   224   2005-03-10   
732-276 7 Lakewood NJ   224   2005-03-10   
732-305 6 Franklin Park NJ   224   2008-10-17   
732-307 2 South River NJ   224   2013-01-05   
732-313 6 South Amboy NJ   224   2003-07-01   
732-313 7 South Amboy NJ   224   2013-06-22   
732-317 1 New Brunswick NJ   224      
732-317 2 New Brunswick NJ   224      
732-317 3 New Brunswick NJ   224      
732-317 4 New Brunswick NJ   224      
732-317 8 New Brunswick NJ   224   2005-02-27   
732-318 6 Metuchen NJ   224   2006-11-10   
732-325 9 New Brunswick NJ   224   2007-08-03   
732-338 6 Jamesburg NJ   224   2018-06-16   
732-339 8 New Brunswick NJ   224   2007-09-06   
732-348 8 Franklin Park NJ   224   2006-08-24   
732-354 3 New Brunswick NJ   224   2007-06-15   
732-354 4 New Brunswick NJ   224   2007-06-15   
732-359 6 Spring Lake NJ   224   2003-03-01   
732-359 7 Spring Lake NJ   224   2007-04-22   
732-359 8 Spring Lake NJ   224   2010-06-25   
732-361 0 Asbury Park NJ   224   2010-06-25   
732-361 3 Asbury Park NJ   224   2004-08-13   
732-361 5 Asbury Park NJ   224   2013-04-14   
732-361 6 Asbury Park NJ   224   2003-02-14   
732-361 7 Asbury Park NJ   224   2004-11-28   
732-361 8 Asbury Park NJ   224   2004-11-28   
732-369 3 Bound Brook NJ   224   2003-07-07   
732-369 6 Bound Brook NJ   224   2004-11-29   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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