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.

Sullivan Gardens, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
423-349 A SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-349 0 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-349 1 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-349 2 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-349 3 JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2008-10-24   
423-349 4 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-349 5 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-349 6 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-349 7 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-349 8 BUVLTNAXPS1  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 956   2005-01-23   
423-349 9 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-516 A SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-516 0 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2015-02-21   
423-516 1 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2023-09-16   
423-516 2 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956   2012-04-13   
423-516 3 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956   2012-05-26   
423-516 4 SLGRTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956   2012-05-26   
423-516 5 JHCYTNXCX3X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 956   2013-06-01   
423-516 6 JHCYTNXCXRX  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 956   2016-09-16   
423-516 7 JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956   2014-04-21   
423-516 8 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2018-06-09   
423-516 9 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2018-08-05   
423-583 A JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-583 0 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2018-11-26   
423-583 1 JHCYTNXCXAY  073H TELNYX LLC 956   2021-01-23   
423-583 2 JHCYTNXCX8Y  939H COMMIO, LLC 956   2022-12-11   
423-583 3 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-07-10   
423-583 4 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-07-10   
423-583 5 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-02-17   
423-583 6 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-02-17   
423-583 7 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2022-12-29   
423-583 8 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2019-06-06   
423-583 9 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2019-06-06   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.