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: SHFDALMTDS0

Remotes:

Switch Switch name Switch type
CRLDALMARS0  COURTLAND  5BR 
KLLNALMARS4  KILLEN  EXM 
LGTNALMARS0  LEIGHTON  EXM 
LXTNALMARS0  LEXINGTON  5ER 
RRVLALMARS0  ROGERSVILLE  5BR 
TWCKALMARS0  TOWN CREEK  5BR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
256-314 A Sheffield AL 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 477      
256-381 A Sheffield AL 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 477      
256-383 A Sheffield AL 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 477      
256-386 A Sheffield AL 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 477      
256-389 A Sheffield AL 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 477      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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