Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9EMM callsign genealogy
Currently held by Appel, Ronald F
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 N9EMM's current licensee, walking backwards.
- Milligan, Mitchell RWIgranted 2019-07-29cancelled 2019-08-16
Successor callsigns
Callsigns held now by people who previously held N9EMM.
- Appel, Ronald FFLgranted 2024-08-07
All historical holders
Every license row we've seen with the callsign N9EMM, oldest first.
- Appel, Ronald F FL2004-08-20 → cancelled 2004-09-10
- Milligan, Mitchell R WI2019-08-16 active