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: 635

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-635 A Babylon NY HCVLNYAHDS9  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2025-02-15   
631-635 0 Babylon NY   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2016-10-25   
631-635 1 Babylon NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2016-03-28   
631-635 2 Babylon NY   7126 CABLEVISION LIGHTPATH, INC. - NY 132   2015-07-20   
631-635 3 Babylon NY   7126 CABLEVISION LIGHTPATH, INC. - NY 132   2015-07-20   
631-635 4 Babylon NY   7126 CABLEVISION LIGHTPATH, INC. - NY 132   2015-07-20   
631-635 5 Babylon NY   7126 CABLEVISION LIGHTPATH, INC. - NY 132   2015-07-20   
631-635 6 Babylon NY   384C ONVOY, LLC- NY 132   2016-03-11   
631-635 7 Babylon NY   384C ONVOY, LLC- NY 132   2016-03-11   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.