Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4NX callsign genealogy
Currently held by Wolslager, Sean P
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 KX4NX's current licensee, walking backwards.
- Gray, Larry EALgranted 2026-02-14cancelled 2026-03-07
Successor callsigns
Callsigns held now by people who previously held KX4NX.
- Wolslager, Sean PFLgranted 2019-03-23
All historical holders
Every license row we've seen with the callsign KX4NX, oldest first.
- Wolslager, Sean P FL2017-08-08 → cancelled 2019-03-23
- Gray, Larry E AL2026-03-07 active