Local Calling Guide

Area code/prefix search

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NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 651

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-651 A Northport NY   612K CSC VOICE, LLC 132      
631-651 0 Northport NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2016-06-25   
631-651 1 Northport NY NYCMNY83DSZ  4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2006-04-07   
631-651 2 Northport NY WHPLNYGR1MD  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-651 3 Northport NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2016-06-25   
631-651 4 Northport NY BTHPNYGRDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2007-08-16   
631-651 5 Northport NY   612K CSC VOICE, LLC 132   2011-10-20   
631-651 6 Northport NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2012-03-26   
631-651 7 Northport NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2012-04-08   
631-651 8 Northport NY   612K CSC VOICE, LLC 132      
631-651 9 Northport NY   612K CSC VOICE, LLC 132      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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