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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-999 7 Jamesport NY NYCMNYZRXEX  558C REGIONAL TELEPHONE CORPORATION - NY 132   2024-04-22   
631-999 8 Jamesport NY NYCMNYZRXEX  558C REGIONAL TELEPHONE CORPORATION - NY 132   2024-04-22   
631-999 9 Jamesport NY NYCMNYZRXEX  558C REGIONAL TELEPHONE CORPORATION - NY 132   2024-04-22   

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Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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