Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE4TNX callsign genealogy
Currently held by SWADER, MICHAEL S
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 KE4TNX's current licensee, walking backwards.
- Swader, Michael SALgranted 2021-07-29cancelled 2021-08-17
Successor callsigns
Callsigns held now by people who previously held KE4TNX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE4TNX, oldest first.
- SWADER, MICHAEL S AL1995-03-21 → cancelled 2006-12-13
- Swader, Michael S AL2021-08-17 active