Local Calling Guide

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

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-597 A East Fire Island NY OCBHNYOBRS0  9104 VERIZON NEW YORK, INC. 132      
631-597 0 East Fire Island NY   384C ONVOY, LLC- NY 132   2021-01-29   
631-597 1 East Fire Island NY   473G TELENGY L.L.C. - NY 132   2012-02-25   
631-597 2 East Fire Island NY   384C ONVOY, LLC- NY 132   2013-01-17   
631-597 3 East Fire Island NY   073H TELNYX LLC 132   2021-02-18   
631-597 5 East Fire Island NY   145J TERRA NOVA TELECOM INC. 132   2020-12-28   
631-597 6 East Fire Island NY   9104 VERIZON NEW YORK, INC. 132      
631-597 8 East Fire Island NY   384C ONVOY, LLC- NY 132   2012-11-16   
631-597 9 East Fire Island NY   9104 VERIZON NEW YORK, INC. 132      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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