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: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-550 A Jersey City NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224      
551-550 0 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 1 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 2 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 3 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 4 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 5 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 6 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 7 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 8 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   
551-550 9 Jersey City NJ   637C ONVOY, LLC - NJ 224   2022-05-22   

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

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