Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4JAX callsign genealogy
Currently held by Regney, David M
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by N4JAX's current licensee, walking backwards.
- KK4SBOcancelledDuval-ARESFLgranted 2013-06-20cancelled 2013-07-09
Successor callsigns
Callsigns held now by people who previously held N4JAX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4JAX, oldest first.
- CAUSEY II, JAMES F GA1989-03-28 → cancelled 2001-03-29
- Regney, David M VA2001-04-17 → cancelled 2013-04-18
- Duval-ARES FL2023-07-01 active