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: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-663 A Kings Park NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-663 0 Kings Park NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2021-03-14   
631-663 1 Kings Park NY NYCMNYBX3MD  473G TELENGY L.L.C. - NY 132   2012-02-27   
631-663 2 Kings Park NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-663 3 Kings Park NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-663 4 Kings Park NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-663 5 Kings Park NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-663 6 Kings Park NY   1215 CORETEL NEW YORK, INC. - NY 132   2019-05-22   
631-663 7 Kings Park NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2012-04-08   
631-663 8 Kings Park NY NYCMNYBXJMD  073H TELNYX LLC 132   2017-05-17   
631-663 9 Kings Park NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2021-03-14   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.