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: 244

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
606-244 A Louisa KY GRTWKYMAJMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466      
606-244 0 Louisa KY   4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466   2006-01-23   
606-244 1 Louisa KY   073H TELNYX LLC 466   2020-07-11   
606-244 4 Louisa KY   4369 LEVEL 3 COMMUNICATIONS, LLC - KY 466   2012-12-02   
606-244 5 Louisa KY   193F CELLULAR SERVICES, LLC - KY 466   2020-02-25   
606-244 8 Louisa KY   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 466   2018-04-09   
606-244 9 Louisa KY   073H TELNYX LLC 466   2023-03-30   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.