Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4HJC callsign genealogy
Currently held by HERZBERG, JOHN CHARLES
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 N4HJC's current licensee, walking backwards.
- HERZBERG, JOHN CHARLESFLgranted 2020-05-29cancelled 2024-11-30
Successor callsigns
Callsigns held now by people who previously held N4HJC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4HJC, oldest first.
- SPRUILL, ALLEN L WA2008-04-17 → cancelled 2020-04-18
- HERZBERG, JOHN CHARLES FL2024-11-30 active