Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9DCH callsign genealogy
Currently held by Baum, Heather A
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 KD9DCH's current licensee, walking backwards.
- Baum, Heather AILgranted 2014-11-14cancelled 2015-03-03
Successor callsigns
Callsigns held now by people who previously held KD9DCH.
No current licensee on record previously held this callsign.