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: 289

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-289 A Camden NJ CMDNNJ211MD  6630 USA MOBILITY WIRELESS, INC. 222      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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