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: 800

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-800 A Westwood NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224      
551-800 0 Westwood NJ   637C ONVOY, LLC - NJ 224   2014-01-13   
551-800 1 Westwood NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 224   2014-04-04   
551-800 2 Westwood NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 224   2014-04-04   
551-800 3 Westwood NJ   637C ONVOY, LLC - NJ 224   2015-01-06   
551-800 4 Westwood NJ   637C ONVOY, LLC - NJ 224   2015-01-06   
551-800 5 Westwood NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 224   2015-02-26   
551-800 6 Westwood NJ   637C ONVOY, LLC - NJ 224   2016-03-10   
551-800 7 Westwood NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 224   2015-02-26   
551-800 8 Westwood NJ   515J IP HORIZON LLC 224   2015-03-25   
551-800 9 Westwood NJ   637C ONVOY, LLC - NJ 224   2016-03-10   

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

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