Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4EMS callsign genealogy
Currently held by Wilson, Ian M
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 KN4EMS's current licensee, walking backwards.
- Maher, Wyatt RGAgranted 2019-09-03cancelled 2019-09-24
Successor callsigns
Callsigns held now by people who previously held KN4EMS.
- Wilson, Ian MFLgranted 2017-08-01
All historical holders
Every license row we've seen with the callsign KN4EMS, oldest first.
- Wilson, Ian M FL2017-07-11 → cancelled 2017-08-01
- Maher, Wyatt R GA2019-09-24 active