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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 239

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-239 A Northport NY HNTNNYSUDS2  7140 TC SYSTEMS, INC. - NY 132      
631-239 0 Northport NY   515J IP HORIZON LLC 132   2015-03-25   
631-239 1 Northport NY HCVLNYAHDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2007-07-02   
631-239 2 Northport NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132   2003-06-09   
631-239 3 Northport NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2016-03-03   
631-239 4 Northport NY HNTNNYSUDS2  7140 TC SYSTEMS, INC. - NY 132      
631-239 5 Northport NY BTHPNYGRDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2002-06-11   
631-239 6 Northport NY BTHPNYGRDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2002-06-11   
631-239 7 Northport NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2016-03-03   
631-239 8 Northport NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132   2005-07-05   
631-239 9 Northport NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132   2005-07-05   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.