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: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-303 A Closter NJ WAYNNJAWCMS  6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224      
551-303 0 Closter NJ   264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2019-03-31   
551-303 1 Closter NJ   637C ONVOY, LLC - NJ 224   2019-04-19   
551-303 2 Closter NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 224   2019-08-17   
551-303 3 Closter NJ   197D VONAGE AMERICA LLC 224   2020-07-17   
551-303 4 Closter NJ   197D VONAGE AMERICA LLC 224   2020-07-17   
551-303 6 Closter NJ   637C ONVOY, LLC - NJ 224   2020-08-15   
551-303 7 Closter NJ   637C ONVOY, LLC - NJ 224   2020-08-15   
551-303 8 Closter NJ   637C ONVOY, LLC - NJ 224   2019-04-19   
551-303 9 Closter NJ   6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2019-03-30   

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

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