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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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
904-904 1 Jacksonville FL   45204   2024-08-17   
904-904 2 Jacksonville FL   45204   2024-08-17   
904-904 3 Jacksonville FL   45204   2024-08-17   
904-904 4 Jacksonville FL   45204   2024-08-17   
904-904 5 Jacksonville FL   45204   2024-08-17   
904-904 6 Jacksonville FL   45204   2024-08-17   
904-904 7 Jacksonville FL   45204   2024-08-17   
904-904 8 Jacksonville FL   45204   2024-08-17   
904-904 9 Jacksonville FL   45204   2024-08-17   

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

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