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: BILXMSMADS0

Remotes:

Switch Switch name Switch type
BILXMSDIRS9  BILOXI D'IBERVILLE  EXM 
HRLYMSMARS9  HURLEY  EXM 
VNCLMSMARS9  VANCLEAVE  EXM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
228-374 A Biloxi MS 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 484      
228-386 A Biloxi MS 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 484      
228-387 A Biloxi MS 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 484      
228-432 A Biloxi MS 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 484      
228-435 A Biloxi MS 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 484      
228-436 A Biloxi MS 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 484      
228-523 A Biloxi MS 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 484      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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