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: 763

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-763 A Cold Spring Harbor NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      
631-763 0 Cold Spring Harbor NY   321J HD CARRIER LLC 132      
631-763 1 Cold Spring Harbor NY NYCMNYZRDBS  155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132      
631-763 2 Cold Spring Harbor NY NYCMNYZRDBS  155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132      
631-763 3 Cold Spring Harbor NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      
631-763 4 Cold Spring Harbor NY   1215 CORETEL NEW YORK, INC. - NY 132      
631-763 5 Cold Spring Harbor NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132      
631-763 6 Cold Spring Harbor NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132      
631-763 7 Cold Spring Harbor NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132      
631-763 8 Cold Spring Harbor NY   1215 CORETEL NEW YORK, INC. - NY 132      
631-763 9 Cold Spring Harbor NY NYCMNY13XMX  534J UCOMTEL INC. 132      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.