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.
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Switch: RLVLALMADS0

Remotes:

Switch Switch name Switch type
RDBAALMARS0  RED BAY  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
256-331 A Russellville AL 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 477      
256-332 A Russellville 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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