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: 813

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-813 A Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-813 0 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2016-02-07   
423-813 1 Cleveland TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2019-06-23   
423-813 2 Cleveland TN CHTGTNNSXTZ  506J TWILIO INTERNATIONAL INC 472   2022-01-13   
423-813 3 Cleveland TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2016-07-22   
423-813 4 Cleveland TN CHTGTNMAXVX  516C AT&T CORP. 472   2016-10-03   
423-813 5 Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. DBA T-MOBILE USA 472   2022-01-13   
423-813 6 Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. DBA T-MOBILE USA 472   2022-01-13   
423-813 7 Cleveland TN CLEVTNDL0MD  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 472   2016-03-14   
423-813 8 Cleveland TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2019-06-23   
423-813 9 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2015-11-22   

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

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.