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: 664

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-664 A Trappe MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-664 0 Trappe MD SLBRMD901MD  939H COMMIO, LLC 242      
667-664 2 Trappe MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242      
667-664 4 Trappe MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-664 6 Trappe MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-664 7 Trappe MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-664 9 Trappe MD   568G PEERLESS NETWORK OF MARYLAND, LLC 242      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.