Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 551 [Rate centres in NPA 551] [Dial plan for NPA 551]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-999 6 Hackensack NJ WHWKNJAN5MD  4804 LEVEL 3 COMMUNICATIONS, LLC - NJ 224   2014-05-02   
551-999 7 Hackensack NJ NBWKNJ17QMD  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224   2014-06-21   
551-999 8 Hackensack NJ NBWKNJ17QMD  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224   2014-07-21   
551-999 9 Hackensack NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2013-06-17   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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