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.

Keyser, WV

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
681-620 6 CMLDMDCM5MD  6284 UNITED STATES CELLULAR - WV 240   2019-01-20   
681-620 7   9944 LEVEL 3 COMMUNICATIONS, LLC - WV 240   2016-11-12   
681-620 8 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2014-07-12   
681-620 9 MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2016-06-13   

<< 1 2

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.