Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3EXO callsign genealogy
Currently held by WISE SR, FRANK W
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 K3EXO's current licensee, walking backwards.
- Koenig, Elaina TWAgranted 2019-03-18cancelled 2019-12-24
Successor callsigns
Callsigns held now by people who previously held K3EXO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3EXO, oldest first.
- WISE SR, FRANK W PA1995-07-03 → cancelled 2006-04-06
- Koenig, Elaina T WA2019-12-24 active