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.

Spring City, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
423-365 A SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-407 A CHTGTNNSXGZ  204G TWIN LAKES COMMUNICATIONS, INC. - TN 472      
423-407 0 CHTGTNNSXJZ  073H TELNYX LLC 472   2021-01-23   
423-407 1 CHTGTNNSXGZ  204G TWIN LAKES COMMUNICATIONS, INC. - TN 472   2020-03-13   
423-407 2 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-07-11   
423-407 3 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-07-11   
423-407 4 CHTGTNNSXTZ  506J TWILIO INTERNATIONAL, INC. 472   2021-08-08   
423-407 5 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-10-24   
423-407 6 CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2022-01-10   
423-407 7 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-03-15   
423-407 8 CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2020-03-14   
423-407 9 CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2023-06-17   
423-452 A SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 0 SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 1 SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 2 SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 4 SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 6 SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 7 SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 9 SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-799 A CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-799 0 CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2008-11-28   
423-799 1 CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2012-10-20   
423-799 2 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2016-03-31   
423-799 3 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2016-03-31   
423-799 4 CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2004-12-20   
423-799 5 CHTGTNMAXVX  516C AT&T CORP. 472   2011-08-29   
423-799 7 CLEVTNDL0MD  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 472   2023-04-19   
423-799 8 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2017-01-29   
423-799 9 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2019-04-27   
423-862 A CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-862 0 CHTGTN12X2Y  939H COMMIO, LLC 472   2023-10-22   
423-862 1 CHTGTN12X2Y  939H COMMIO, LLC 472   2023-10-22   
423-862 2 CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2023-10-21   
423-862 8 CHTGTN12X2Y  939H COMMIO, LLC 472   2023-10-22   
423-862 9 CHTGTN12X2Y  939H COMMIO, LLC 472   2023-10-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.