Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0XXX callsign genealogy
Currently held by Hambrice, Mark E
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 K0XXX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K0XXX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0XXX, oldest first.
- Hambrice, Mark E AR2011-06-02 → cancelled 2023-06-06
- ROMULD, JOSEPH J MN2023-08-18 active