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: 983

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
904-983 A Orange Park FL   624H ONVOY SPECTRUM, LLC 45204   2025-06-14   
904-983 0 Orange Park FL   515J IP HORIZON LLC 45204   2025-12-11   
904-983 1 Orange Park FL   515J IP HORIZON LLC 45204   2025-12-11   
904-983 4 Orange Park FL   624H ONVOY SPECTRUM, LLC 45204   2025-06-14   
904-983 5 Orange Park FL   624H ONVOY SPECTRUM, LLC 45204   2025-06-14   
904-983 6 Orange Park FL   624H ONVOY SPECTRUM, LLC 45204   2025-06-14   
904-983 7 Orange Park FL   624H ONVOY SPECTRUM, LLC 45204   2025-06-14   
904-983 8 Orange Park FL   624H ONVOY SPECTRUM, LLC 45204   2025-06-14   
904-983 9 Orange Park FL   624H ONVOY SPECTRUM, LLC 45204   2025-06-14   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.