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: 270 [Rate centres in NPA 270] [Dial plan for NPA 270]

NXX: 451

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
270-451 A Smiths Grove KY OWBOKYMAXGX  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 464      
270-451 2 Smiths Grove KY   4369 LEVEL 3 COMMUNICATIONS, LLC - KY 464   2011-05-06   
270-451 3 Smiths Grove KY   896E ONVOY, LLC - KY 464   2020-10-29   
270-451 4 Smiths Grove KY   896E ONVOY, LLC - KY 464   2020-10-29   
270-451 5 Smiths Grove KY   698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 464   2012-12-14   
270-451 7 Smiths Grove KY   896E ONVOY, LLC - KY 464   2021-03-07   
270-451 8 Smiths Grove KY   073H TELNYX LLC 464   2020-07-17   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.