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: 370

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-370 A Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-370 0 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-370 1 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-370 2 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-370 3 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-370 6 Parkton MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-23   
667-370 7 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-22   
667-370 9 Parkton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-01-03   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.