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: 606 [Rate centres in NPA 606] [Dial plan for NPA 606]

NXX: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
606-420 A Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466      
606-420 0 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2017-11-12   
606-420 1 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2020-01-16   
606-420 2 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2020-01-16   
606-420 3 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2020-01-16   
606-420 4 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2012-02-01   
606-420 5 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2019-12-08   
606-420 6 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2019-12-08   
606-420 7 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2019-12-08   
606-420 8 Ashland KY ASLDKYXAJMD  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 466   2019-12-08   
606-420 9 Ashland KY ASLDKYXAX2X  896E ONVOY, LLC - KY 466   2024-03-03   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.