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.

NPA: 904 [Rate centres in NPA 904] [Dial plan for NPA 904]

NXX: 939

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
904-939 A Jacksonville Beach FL JCVLFLCLYCY  598J FIVE9, INC. 45204   2024-04-29   
904-939 0 Jacksonville Beach FL JCVLFLCLYCY  598J FIVE9, INC. 45204   2024-04-29   
904-939 1 Jacksonville Beach FL JCVLFLCL80Z  7472 POWERTEL JACKSONVILLE LICENSES, INC. 45204   2024-08-29   
904-939 8 Jacksonville Beach FL   515J IP HORIZON LLC 45204   2025-12-06   
904-939 9 Jacksonville Beach FL   515J IP HORIZON LLC 45204   2025-12-06   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.