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: 412

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-412 A Easton MD SLBRMDSBX4Y  732J NUSO, LLC 242      
667-412 0 Easton MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2024-08-24   
667-412 1 Easton MD SLBRMDSBX4Y  732J NUSO, LLC 242   2022-10-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.