Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3JFM callsign genealogy
Currently held by MARKLEWICZ, JOHN F
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 K3JFM's current licensee, walking backwards.
- MARKLEWICZ, JOHN Fcancelled 1999-02-03
Successor callsigns
Callsigns held now by people who previously held K3JFM.
- MARKLEWICZ, JOHN FSCgranted 2021-05-28