Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2018-03-23   
551-300 1 Union City NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2018-03-23   
551-300 2 Union City NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2018-03-23   
551-300 3 Union City NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2018-03-23   
551-300 4 Union City NJ WAYNNJAWCMS  6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2019-02-23   
551-300 5 Union City NJ PSWYNJBXDS0  999H BLUEBIRD COMMUNICATIONS, LLC - NJ 224   2018-09-19   
551-300 6 Union City NJ JRCYNJ65DS4  264F PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 224   2019-03-10   
551-300 7 Union City NJ PRNYNJFPDS1  4948 CABLEVISION LIGHTPATH, INC. - NJ 224   2019-03-21   
551-300 8 Union City NJ WAYNNJAWCMS  6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2018-12-07   
551-300 9 Union City NJ WAYNNJAWCMS  6623 OMNIPOINT COMMUNICATIONS, INC. - NJ 224   2019-01-18   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.