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: 540 [Rate centres in NPA 540] [Dial plan for NPA 540]

NXX: 889

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-889 A Craigsville VA RONKVALKXAX  073H TELNYX LLC 244      
540-889 0 Craigsville VA   138E ONVOY, LLC - VA 244   2017-05-27   
540-889 1 Craigsville VA   073H TELNYX LLC 244   2019-10-05   
540-889 2 Craigsville VA   8825 LEVEL 3 COMMUNICATIONS, LLC - VA 244   2017-07-20   
540-889 3 Craigsville VA   138E ONVOY, LLC - VA 244   2020-03-29   
540-889 4 Craigsville VA   138E ONVOY, LLC - VA 244   2020-03-29   
540-889 5 Craigsville VA   138E ONVOY, LLC - VA 244   2021-04-19   
540-889 6 Craigsville VA   138E ONVOY, LLC - VA 244   2021-05-08   
540-889 7 Craigsville VA   138E ONVOY, LLC - VA 244   2021-05-08   
540-889 9 Craigsville VA   624H ONVOY SPECTRUM, LLC 244   2021-05-27   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.