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: 357

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-357 A Oakland NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224      
551-357 0 Oakland NJ   637C ONVOY, LLC - NJ 224   2023-09-14   
551-357 1 Oakland NJ   490J DISH WIRELESS, LLC 224   2023-09-22   
551-357 2 Oakland NJ   637C ONVOY, LLC - NJ 224   2024-11-07   
551-357 3 Oakland NJ   637C ONVOY, LLC - NJ 224   2022-11-04   
551-357 4 Oakland NJ   637C ONVOY, LLC - NJ 224   2022-11-04   
551-357 5 Oakland NJ   637C ONVOY, LLC - NJ 224   2022-11-04   
551-357 6 Oakland NJ   637C ONVOY, LLC - NJ 224   2022-11-04   
551-357 7 Oakland NJ   6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2024-06-12   
551-357 8 Oakland NJ   637C ONVOY, LLC - NJ 224   2024-03-14   
551-357 9 Oakland NJ   6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2024-06-12   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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