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: PTBRLAMADS0

Remotes:

Switch Switch name Switch type
KRSPLAMARS1  KROTZ SPRINGS  DCL 
LOVLLAMARS1  LEONVILLE  DCL 
LWTLLAMARS1  LAWTELL  DCL 
MEVLLAMARS1  MELVILLE  DCL 
WASHLAMARS1  WASHINGTON  DCL 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
337-585 A Port Barre LA 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 488      
337-585 0 Port Barre LA 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 488      
337-585 2 Port Barre LA 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 488      
337-585 6 Port Barre LA 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 488      
337-585 7 Port Barre LA 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 488      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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