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: 367

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-367 A Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 0 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 1 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 2 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 3 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 4 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 5 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2007-03-03   
423-367 6 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 7 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 8 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-367 9 Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2007-03-03   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.