Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4TXM callsign genealogy
Currently held by Fry, Karl 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 KF4TXM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KF4TXM.
- FRY, KARL WKYgranted 1997-09-10cancelled 2000-07-04
All historical holders
Every license row we've seen with the callsign KF4TXM, oldest first.
- FRY, KARL W KY1997-09-10 → cancelled 1999-09-14
- Fry, Karl W KY2022-02-08 active