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: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-291 A Millington MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-291 0 Millington MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-05-11   
667-291 1 Millington MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
667-291 2 Millington MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-15   
667-291 3 Millington MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-10-12   
667-291 7 Millington MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-04-29   
667-291 8 Millington MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
667-291 9 Millington MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.