Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 857

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-857 A Cold Spring Harbor NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      
631-857 0 Cold Spring Harbor NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      
631-857 1 Cold Spring Harbor NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      
631-857 3 Cold Spring Harbor NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2016-03-07   
631-857 4 Cold Spring Harbor NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2016-03-07   
631-857 7 Cold Spring Harbor NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      
631-857 8 Cold Spring Harbor NY NYCMNY37UMD  321J HD CARRIER LLC 132   2014-08-01   
631-857 9 Cold Spring Harbor NY   818H PEERING HUB, INC. - NY 132   2021-05-26   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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