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: 755

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-755 A Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-755 0 Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-755 1 Chattanooga TN CHTGTNOXZMD  5562 METROPCS, INC. 472      
423-755 2 Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-755 3 Chattanooga TN CHTGTNOXZMD  5562 METROPCS, INC. 472      
423-755 4 Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-755 5 Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-755 6 Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-755 7 Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-755 8 Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-755 9 Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.