Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 835E BLOCK LINE SYSTEMS, LLC - NJ

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
973-844 6 Belleville NJ   224   2012-12-28   
973-924 4 Millburn NJ   224   2013-11-17   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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