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: 393

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
606-393 A Ashland KY GRTWKYMAJMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466      
606-393 0 Ashland KY GRTWKYMAJMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466      
606-393 1 Ashland KY ASLDKYXAX3X  793K TWC IP ENABLED SERVICES, LLC 466   2015-01-23   
606-393 2 Ashland KY GRTWKYMAJMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466   2022-10-14   
606-393 3 Ashland KY ASLDKYXAX3X  793K TWC IP ENABLED SERVICES, LLC 466   2009-11-05   
606-393 4 Ashland KY GRTWKYMAJMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466   2004-05-27   
606-393 5 Ashland KY ASLDKYXAX3X  793K TWC IP ENABLED SERVICES, LLC 466   2006-12-04   
606-393 6 Ashland KY GRTWKYMAJMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466   2012-09-25   
606-393 7 Ashland KY GRTWKYMAJMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466   2022-12-31   
606-393 8 Ashland KY DAVLKYMAX7X  073H TELNYX LLC 466   2020-06-04   
606-393 9 Ashland KY LXTNKY24X5Y  6500 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 466   2023-10-26   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.