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
631-415 4 Central Islip NY 612K CSC VOICE, LLC 132   2007-11-08   
631-419 6 Bayport NY 612K CSC VOICE, LLC 132   2007-11-17   
631-438 0 Patchogue NY 612K CSC VOICE, LLC 132   2011-10-21   
631-448 7 Yaphank NY 612K CSC VOICE, LLC 132   2013-04-29   
631-448 8 Yaphank NY 612K CSC VOICE, LLC 132   2013-01-03   
631-450 4 Lindenhurst NY 612K CSC VOICE, LLC 132   2012-10-14   
631-456 5 Brentwood NY 612K CSC VOICE, LLC 132   2006-09-23   
631-464 4 Amityville NY 612K CSC VOICE, LLC 132   2011-10-27   
631-468 8 Ronkonkoma NY 612K CSC VOICE, LLC 132   2011-09-04   
631-477 6 Greenport (Suffolk) NY 612K CSC VOICE, LLC 132   2003-07-02   
631-482 A Babylon NY 612K CSC VOICE, LLC 132      
631-482 1 Babylon NY 612K CSC VOICE, LLC 132   2007-10-12   
631-482 8 Babylon NY 612K CSC VOICE, LLC 132   2007-05-20   
631-482 9 Babylon NY 612K CSC VOICE, LLC 132   2007-05-20   
631-486 2 West Commack NY 612K CSC VOICE, LLC 132      
631-486 4 West Commack NY 612K CSC VOICE, LLC 132      
631-486 6 West Commack NY 612K CSC VOICE, LLC 132      
631-486 8 West Commack NY 612K CSC VOICE, LLC 132      
631-486 9 West Commack NY 612K CSC VOICE, LLC 132      
631-488 A Southampton NY 612K CSC VOICE, LLC 132      
631-488 4 Southampton NY 612K CSC VOICE, LLC 132   2010-05-26   
631-496 9 Selden NY 612K CSC VOICE, LLC 132   2013-04-05   
631-498 6 Cold Spring Harbor NY 612K CSC VOICE, LLC 132   2014-02-24   
631-500 9 Water Mill NY 612K CSC VOICE, LLC 132   2013-07-21   
631-504 6 Yaphank NY 612K CSC VOICE, LLC 132   2006-07-14   
631-509 A Port Jefferson NY 612K CSC VOICE, LLC 132      
631-509 0 Port Jefferson NY 612K CSC VOICE, LLC 132   2007-07-19   
631-509 1 Port Jefferson NY 612K CSC VOICE, LLC 132   2007-07-19   
631-509 4 Port Jefferson NY 612K CSC VOICE, LLC 132   2011-10-27   
631-509 5 Port Jefferson NY 612K CSC VOICE, LLC 132   2006-10-12   
631-509 6 Port Jefferson NY 612K CSC VOICE, LLC 132   2006-10-12   
631-521 7 Brentwood NY 612K CSC VOICE, LLC 132   2004-06-07   
631-522 A Deer Park NY 612K CSC VOICE, LLC 132      
631-522 1 Deer Park NY 612K CSC VOICE, LLC 132   2009-05-24   
631-524 5 Brentwood NY 612K CSC VOICE, LLC 132   2011-09-09   
631-526 9 Babylon NY 612K CSC VOICE, LLC 132   2015-06-28   
631-527 A East Hampton NY 612K CSC VOICE, LLC 132      
631-527 5 East Hampton NY 612K CSC VOICE, LLC 132   2012-07-14   
631-527 7 East Hampton NY 612K CSC VOICE, LLC 132   2011-07-25   
631-532 5 Amityville NY 612K CSC VOICE, LLC 132   2006-03-25   
631-532 6 Amityville NY 612K CSC VOICE, LLC 132   2007-10-12   
631-539 2 Babylon NY 612K CSC VOICE, LLC 132   2003-07-14   
631-539 4 Babylon NY 612K CSC VOICE, LLC 132      
631-539 6 Babylon NY 612K CSC VOICE, LLC 132      
631-539 7 Babylon NY 612K CSC VOICE, LLC 132      
631-539 8 Babylon NY 612K CSC VOICE, LLC 132      
631-539 9 Babylon NY 612K CSC VOICE, LLC 132      
631-557 3 Amagansett NY 612K CSC VOICE, LLC 132   2018-08-10   
631-562 A Patchogue NY 612K CSC VOICE, LLC 132      
631-569 2 Patchogue NY 612K CSC VOICE, LLC 132   2007-09-08   

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

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