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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-377 A Southampton NY GCPKNYAIGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132      
631-377 0 Southampton NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2007-01-05   
631-377 1 Southampton NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2007-01-05   
631-377 2 Southampton NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2007-01-05   
631-377 3 Southampton NY   7126 CABLEVISION LIGHTPATH, INC. - NY 132   2007-04-23   
631-377 4 Southampton NY   155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2007-05-13   
631-377 5 Southampton NY   7133 MCI WORLDCOM COMMUNICATIONS INC. - NY 132   2008-03-01   
631-377 6 Southampton NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2010-04-17   
631-377 7 Southampton NY   8340 XO NEW YORK, INC. 132   2008-02-11   
631-377 8 Southampton NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2016-07-16   
631-377 9 Southampton NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2009-07-18   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.