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.

Switch: SPCYTNMTRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-365 A Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 A Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 0 Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 1 Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 2 Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 4 Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 6 Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 7 Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 9 Spring City TN 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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