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: 863

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-863 A Smithtown NY SMTWNYSMDS0  9104 VERIZON NEW YORK, INC. 132      
631-863 0 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-863 1 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-863 2 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-863 3 Smithtown NY   145J TERRA NOVA TELECOM INC. 132   2025-09-01   
631-863 4 Smithtown NY   7126 CABLEVISION LIGHTPATH, INC. - NY 132   2007-09-21   
631-863 5 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-863 6 Smithtown NY   829J PAETEC ITEL, LLC 132   2005-10-02   
631-863 7 Smithtown NY   508J CENTURYLINK COMMUNICATIONS, LLC 132   2014-01-14   
631-863 8 Smithtown NY   829J PAETEC ITEL, LLC 132   2010-03-16   
631-863 9 Smithtown NY   997E BANDWIDTH.COM CLEC, LLC - NY 132   2010-08-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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