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: 803

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-803 A Bellport NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-803 0 Bellport NY   612K CSC VOICE, LLC 132      
631-803 1 Bellport NY   5562 METROPCS, INC. 132   2025-04-23   
631-803 2 Bellport NY   612K CSC VOICE, LLC 132      
631-803 3 Bellport NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-803 4 Bellport NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132   2005-10-15   
631-803 6 Bellport NY   612K CSC VOICE, LLC 132      
631-803 7 Bellport NY   145J TERRA NOVA TELECOM INC. 132   2020-12-28   
631-803 8 Bellport NY   612K CSC VOICE, LLC 132      
631-803 9 Bellport NY WHPLNYWPXOY  997E BANDWIDTH.COM CLEC, LLC - NY 132   2009-10-04   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.