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: 662

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-662 A Smith Island MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-662 1 Smith Island MD   876D ONVOY, LLC - MD 242   2020-08-09   
667-662 2 Smith Island MD   876D ONVOY, LLC - MD 242   2020-08-09   
667-662 4 Smith Island MD   624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-662 6 Smith Island MD   876D ONVOY, LLC - MD 242   2019-12-11   
667-662 7 Smith Island MD   876D ONVOY, LLC - MD 242   2019-12-11   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.