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: 383

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-383 A Oradell NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224      
551-383 0 Oradell NJ   624H ONVOY SPECTRUM, LLC 224   2024-05-22   
551-383 1 Oradell NJ   624H ONVOY SPECTRUM, LLC 224   2024-05-22   
551-383 2 Oradell NJ   637C ONVOY, LLC - NJ 224   2023-11-25   
551-383 3 Oradell NJ   637C ONVOY, LLC - NJ 224   2023-11-25   
551-383 4 Oradell NJ   637C ONVOY, LLC - NJ 224   2023-11-25   
551-383 5 Oradell NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 224   2025-01-05   
551-383 6 Oradell NJ   637C ONVOY, LLC - NJ 224   2024-10-04   
551-383 7 Oradell NJ   637C ONVOY, LLC - NJ 224   2024-08-24   
551-383 8 Oradell NJ   264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2024-02-24   
551-383 9 Oradell NJ   264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2023-12-21   

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

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