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: 859 [Rate centres in NPA 859] [Dial plan for NPA 859]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
859-666 A Williamstown KY CNCNOHRE2MD  896E ONVOY, LLC - KY 922      
859-666 0 Williamstown KY CNCNOHFBAMD  6500 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 922   2019-02-03   
859-666 1 Williamstown KY CNCNOHRE2MD  896E ONVOY, LLC - KY 922   2023-08-11   
859-666 2 Williamstown KY CNCNOHAF2MD  987E BANDWIDTH.COM CLEC, LLC - KY 922   2018-06-03   
859-666 3 Williamstown KY CNCNOHWSDSA  035H PEERLESS NETWORK OF KENTUCKY, LLC - KY 922   2019-03-06   
859-666 4 Williamstown KY CNCNOHAF2MD  987E BANDWIDTH.COM CLEC, LLC - KY 922   2019-06-10   
859-666 5 Williamstown KY CNCNOHRE2MD  896E ONVOY, LLC - KY 922   2023-08-11   
859-666 6 Williamstown KY CNCNOHRE2MD  896E ONVOY, LLC - KY 922   2017-12-01   
859-666 7 Williamstown KY CNCNOHRE2MD  896E ONVOY, LLC - KY 922   2023-08-11   
859-666 8 Williamstown KY CNCNOHWSXWY  073H TELNYX LLC 922   2019-09-28   
859-666 9 Williamstown KY CNCNOHRE2MD  896E ONVOY, LLC - KY 922   2023-08-11   

Last updated: Wed, 01 Jan 2025 02:39:49 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.