Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4HSC callsign genealogy
Currently held by HENNON, CLARA 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 K4HSC's current licensee, walking backwards.
- PLUNKETT, JAMES JTNgranted 2018-10-02cancelled 2018-10-19
Successor callsigns
Callsigns held now by people who previously held K4HSC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4HSC, oldest first.
- HENNON, CLARA M FL1993-12-28 → cancelled 2005-12-29
- PLUNKETT, JAMES J TN2018-10-19 active