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: 484 [Rate centres in NPA 484] [Dial plan for NPA 484]

NXX: 551

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
484-551 A Lenape PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
484-551 0 Lenape PA   7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
484-551 1 Lenape PA   145J TERRA NOVA TELECOM INC. 228   2024-02-13   
484-551 2 Lenape PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2004-04-19   
484-551 3 Lenape PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228   2004-11-15   
484-551 5 Lenape PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228   2006-01-07   
484-551 8 Lenape PA   002F BANDWIDTH.COM CLEC, LLC - PA 228   2012-09-14   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.