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: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-300 A Union City NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224      
551-300 0 Union City NJ   637C ONVOY, LLC - NJ 224   2018-03-23   
551-300 1 Union City NJ   637C ONVOY, LLC - NJ 224   2018-03-23   
551-300 2 Union City NJ   637C ONVOY, LLC - NJ 224   2018-03-23   
551-300 3 Union City NJ   637C ONVOY, LLC - NJ 224   2018-03-23   
551-300 4 Union City NJ   6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2019-02-23   
551-300 5 Union City NJ   999H BLUEBIRD COMMUNICATIONS, LLC - NJ 224   2018-09-19   
551-300 6 Union City NJ   264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2019-03-10   
551-300 7 Union City NJ   4948 CABLEVISION LIGHTPATH, INC. - NJ 224   2019-03-21   
551-300 8 Union City NJ   6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2018-12-07   
551-300 9 Union City NJ   6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2019-01-18   

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

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