Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 856 [Rate centres in NPA 856] [Dial plan for NPA 856]

NXX: 670

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-670 A Woodbury NJ   637C ONVOY, LLC - NJ 222   2026-02-07   
856-670 0 Woodbury NJ   637C ONVOY, LLC - NJ 222   2026-02-07   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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