Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
631-259 3 Southampton NY 612K CSC VOICE, LLC 132   2001-09-18   
631-267 5 Amagansett NY 612K CSC VOICE, LLC 132   2001-09-18   
631-270 4 Farmingdale NY 612K CSC VOICE, LLC 132   2002-06-10   
631-274 5 Deer Park NY 612K CSC VOICE, LLC 132   2002-06-10   
631-284 3 Riverhead NY 612K CSC VOICE, LLC 132   2003-07-02   
631-284 9 Riverhead NY 612K CSC VOICE, LLC 132   2010-10-29   
631-285 2 Ronkonkoma NY 612K CSC VOICE, LLC 132   2013-03-17   
631-285 3 Ronkonkoma NY 612K CSC VOICE, LLC 132   2013-09-28   
631-291 9 Brentwood NY 612K CSC VOICE, LLC 132   2004-08-25   
631-292 2 Kings Park NY 612K CSC VOICE, LLC 132   2007-11-17   
631-296 A Bridgehampton NY 612K CSC VOICE, LLC 132      
631-296 8 Bridgehampton NY 612K CSC VOICE, LLC 132   2013-08-19   
631-298 7 Mattituck NY 612K CSC VOICE, LLC 132   2001-10-02   
631-302 3 East Fire Island NY 612K CSC VOICE, LLC 132   2003-09-02   
631-307 9 Patchogue NY 612K CSC VOICE, LLC 132   2013-10-01   
631-314 4 Babylon NY 612K CSC VOICE, LLC 132   2018-07-13   
631-315 A Mattituck NY 612K CSC VOICE, LLC 132      
631-315 5 Mattituck NY 612K CSC VOICE, LLC 132   2007-08-16   
631-319 1 Sayville NY 612K CSC VOICE, LLC 132   2010-08-28   
631-319 6 Sayville NY 612K CSC VOICE, LLC 132   2007-11-08   
631-320 A Selden NY 612K CSC VOICE, LLC 132      
631-320 0 Selden NY 612K CSC VOICE, LLC 132   2007-10-12   
631-320 1 Selden NY 612K CSC VOICE, LLC 132   2007-10-12   
631-320 3 Selden NY 612K CSC VOICE, LLC 132   2007-03-10   
631-323 8 Orient NY 612K CSC VOICE, LLC 132   2001-09-18   
631-328 1 Bay Shore NY 612K CSC VOICE, LLC 132   2007-11-17   
631-328 4 Bay Shore NY 612K CSC VOICE, LLC 132   2007-07-15   
631-328 5 Bay Shore NY 612K CSC VOICE, LLC 132   2007-09-15   
631-333 2 Greenport (Suffolk) NY 612K CSC VOICE, LLC 132   2011-07-14   
631-343 7 Commack NY 612K CSC VOICE, LLC 132   2003-11-01   
631-346 3 Selden NY 612K CSC VOICE, LLC 132   2011-10-20   
631-353 3 Southampton NY 612K CSC VOICE, LLC 132   2011-06-25   
631-357 3 Brentwood NY 612K CSC VOICE, LLC 132   2003-07-02   
631-364 9 Stony Brook NY 612K CSC VOICE, LLC 132   2013-09-05   
631-377 3 Southampton NY 612K CSC VOICE, LLC 132   2007-04-23   
631-381 0 Riverhead NY 612K CSC VOICE, LLC 132   2016-07-30   
631-388 A Brentwood NY 612K CSC VOICE, LLC 132      
631-388 5 Brentwood NY 612K CSC VOICE, LLC 132   2010-12-23   
631-392 A Deer Park NY 612K CSC VOICE, LLC 132      
631-392 0 Deer Park NY 612K CSC VOICE, LLC 132   2006-04-07   
631-392 1 Deer Park NY 612K CSC VOICE, LLC 132   2006-04-07   
631-392 4 Deer Park NY 612K CSC VOICE, LLC 132   2007-11-08   
631-400 9 Center Moriches NY 612K CSC VOICE, LLC 132   2013-03-30   
631-403 4 Port Jefferson NY 612K CSC VOICE, LLC 132   2007-11-08   
631-406 6 Smithtown NY 612K CSC VOICE, LLC 132   2007-10-31   
631-406 7 Smithtown NY 612K CSC VOICE, LLC 132   2007-10-12   
631-407 5 Southold NY 612K CSC VOICE, LLC 132   2013-07-21   
631-412 3 Lindenhurst NY 612K CSC VOICE, LLC 132   2002-06-11   
631-412 5 Lindenhurst NY 612K CSC VOICE, LLC 132   2003-07-14   
631-414 7 Farmingdale NY 612K CSC VOICE, LLC 132      

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

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