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: 279

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-279 A Ramsey NJ WAYNNJAWCMS  5562 METROPCS, INC. 224      
551-279 0 Ramsey NJ WAYNNJAWCMS  5562 METROPCS, INC. 224   2018-08-25   
551-279 1 Ramsey NJ NBWKNJ17QMD  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224   2020-09-25   
551-279 2 Ramsey NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2021-07-15   
551-279 3 Ramsey NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2021-07-15   
551-279 4 Ramsey NJ WAYNNJAWCMS  5562 METROPCS, INC. 224   2021-11-11   
551-279 5 Ramsey NJ PSWYNJBXDS0  999H BLUEBIRD COMMUNICATIONS, LLC - NJ 224   2018-09-19   
551-279 6 Ramsey NJ WAYNNJAWCMS  5562 METROPCS, INC. 224   2021-11-11   
551-279 7 Ramsey NJ NBWKNJ17QMD  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224   2020-09-25   
551-279 8 Ramsey NJ NBWKNJ17QMD  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224   2020-09-25   
551-279 9 Ramsey NJ WAYNNJAWCMS  5562 METROPCS, INC. 224   2018-08-25   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.