Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD0EMM callsign genealogy
Currently held by Cook, Heather C
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 KD0EMM's current licensee, walking backwards.
- Emmert, DavidSDgranted 2025-07-22cancelled 2026-04-03
Successor callsigns
Callsigns held now by people who previously held KD0EMM.
- Cook, HeatherMOgranted 2018-08-07
All historical holders
Every license row we've seen with the callsign KD0EMM, oldest first.
- Cook, Heather C MO2008-06-30 → cancelled 2008-07-29
- Emmert, David SD2026-04-03 active