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: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 252

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-252 A Athens TN KNVLTN02DMD  8356 US LEC OF TENNESSEE, INC. 474      
423-252 0 Athens TN KNVLTNMAYHX  318J COMCAST IP PHONE LLC 474   2011-02-22   
423-252 1 Athens TN KNVLTN02DMD  8356 US LEC OF TENNESSEE, INC. 474      
423-252 2 Athens TN KNVLTN02DMD  8356 US LEC OF TENNESSEE, INC. 474      
423-252 3 Athens TN KNVLTN02DMD  8356 US LEC OF TENNESSEE, INC. 474      
423-252 4 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474   2017-11-06   
423-252 5 Athens TN KNVLTN02DMD  8356 US LEC OF TENNESSEE, INC. 474      
423-252 6 Athens TN KNVLTN02DMD  8356 US LEC OF TENNESSEE, INC. 474      
423-252 7 Athens TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474   2004-05-13   
423-252 8 Athens TN KNVLTNMAXSZ  3290 FUSION CLOUD SERVICES, LLC 474   2006-04-20   
423-252 9 Athens TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474   2007-07-26   

Last updated: Tue, 15 Nov 2022 00:10:00 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.