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: NWORLASD8MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
504-389 A New Orleans LA 321J HD CARRIER LLC 490      
504-389 8 New Orleans LA 321J HD CARRIER LLC 490   2021-12-03   
504-389 9 New Orleans LA 321J HD CARRIER LLC 490   2021-12-03   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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