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: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
270-510 A Livermore KY BVDMKY01CM1  3106 KENTUCKY RSA 3 CELLULAR GENERAL PARTNERSHIP 464   2004-10-25   
270-510 0 Livermore KY   3106 KENTUCKY RSA 3 CELLULAR GENERAL PARTNERSHIP 464   2004-10-25   
270-510 1 Livermore KY   4369 LEVEL 3 COMMUNICATIONS, LLC - KY 464   2006-11-07   
270-510 2 Livermore KY   698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 464   2016-11-20   
270-510 3 Livermore KY   896E ONVOY, LLC - KY 464   2020-10-26   
270-510 4 Livermore KY   896E ONVOY, LLC - KY 464   2020-10-26   
270-510 5 Livermore KY   8406 TELEPORT COMMUNICATIONS AMERICA, LLC - KY 464   2020-11-11   
270-510 8 Livermore KY   073H TELNYX LLC 464   2020-07-11   

Last updated: Sun, 29 Nov 2020 13:13:58 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.