Local Calling Guide

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NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 366

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-366 A Smithtown NY SMTWNYSMDS0  9104 VERIZON NEW YORK, INC. 132      
631-366 0 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-366 1 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-366 2 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-366 3 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-366 4 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-366 5 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-366 6 Smithtown NY   9104 VERIZON NEW YORK, INC. 132      
631-366 7 Smithtown NY   384C ONVOY, LLC- NY 132   2020-05-30   
631-366 8 Smithtown NY   384C ONVOY, LLC- NY 132   2020-05-30   
631-366 9 Smithtown NY   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2018-04-19   

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

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