Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA0HAM callsign genealogy
Currently held by Sellan, Mark
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 KA0HAM's current licensee, walking backwards.
- Sellan, Mark RMOgranted 2025-05-28cancelled 2025-06-17
Successor callsigns
Callsigns held now by people who previously held KA0HAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA0HAM, oldest first.
- HALE, HERBERT R NM2007-08-08 → cancelled 2019-08-09
- Sellan, Mark MO2025-06-17 active