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: 320

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-320 A Rutherford NJ PRNYNJFP4MD  4948 CABLEVISION LIGHTPATH, INC. - NJ 224      
551-320 0 Rutherford NJ   6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2021-11-01   
551-320 1 Rutherford NJ   6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2021-11-01   
551-320 2 Rutherford NJ   624H ONVOY SPECTRUM, LLC 224   2022-01-15   
551-320 3 Rutherford NJ   624H ONVOY SPECTRUM, LLC 224   2022-01-15   
551-320 4 Rutherford NJ   637C ONVOY, LLC - NJ 224   2022-01-28   
551-320 5 Rutherford NJ   637C ONVOY, LLC - NJ 224   2022-01-28   
551-320 6 Rutherford NJ   637C ONVOY, LLC - NJ 224   2022-01-28   
551-320 7 Rutherford NJ   4948 CABLEVISION LIGHTPATH, INC. - NJ 224   2021-07-27   
551-320 8 Rutherford NJ   4948 CABLEVISION LIGHTPATH, INC. - NJ 224   2021-08-21   
551-320 9 Rutherford NJ   624H ONVOY SPECTRUM, LLC 224   2022-03-24   

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

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