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: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 484

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-484 A Westminster MD   490J DISH WIRELESS, LLC 238   2024-07-12   
667-484 0 Westminster MD   490J DISH WIRELESS, LLC 238      
667-484 1 Westminster MD   490J DISH WIRELESS, LLC 238      
667-484 2 Westminster MD   490J DISH WIRELESS, LLC 238      
667-484 3 Westminster MD   490J DISH WIRELESS, LLC 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.