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]

NXX: 290

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-290 A Kearny NJ RCPKNJ02XJY  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-290 0 Kearny NJ   637C ONVOY, LLC - NJ 224   2021-05-21   
551-290 1 Kearny NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2022-07-22   
551-290 2 Kearny NJ   637C ONVOY, LLC - NJ 224   2021-02-04   
551-290 3 Kearny NJ   637C ONVOY, LLC - NJ 224   2021-02-04   
551-290 4 Kearny NJ   637C ONVOY, LLC - NJ 224   2021-02-04   
551-290 5 Kearny NJ   637C ONVOY, LLC - NJ 224   2021-02-04   
551-290 6 Kearny NJ   624H ONVOY SPECTRUM, LLC 224   2021-05-06   
551-290 7 Kearny NJ   637C ONVOY, LLC - NJ 224   2021-05-21   
551-290 8 Kearny NJ   637C ONVOY, LLC - NJ 224   2021-05-21   
551-290 9 Kearny NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2020-12-26   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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