Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RE callsign genealogy
Currently held by KRATOKVIL, FRANK 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 K4RE's current licensee, walking backwards.
- KG4WJScancelledVic Clark Chapter 91 QCWAVAgranted 2002-12-11cancelled 2003-01-22
Successor callsigns
Callsigns held now by people who previously held K4RE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4RE, oldest first.
- KRATOKVIL, FRANK M MD2001-09-06 → cancelled 2002-03-15
- Vic Clark Chapter 91 QCWA VA2024-07-11 active