Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Williamstown, NJ

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
856-885 9 CMDNNJCEXRY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 222   2022-10-23   
856-889 A CMDNNJCE59Z  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 222      

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Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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