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: 576

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-576 A Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-576 1 Jarrettsville MD BLTQMD019MD  490J DISH WIRELESS, LLC 238      
667-576 2 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-576 3 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-576 4 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-576 5 Jarrettsville MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-576 6 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-576 7 Jarrettsville MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-576 8 Jarrettsville MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-576 9 Jarrettsville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.