Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB4XM callsign genealogy
Currently held by BAKER JR, LEE R
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 KB4XM's current licensee, walking backwards.
- BAKER JR, LEE RGAgranted 2014-06-17cancelled 2020-01-14
Successor callsigns
Callsigns held now by people who previously held KB4XM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4XM, oldest first.
- LUKAS, STEPHEN J VA1994-05-24 → cancelled 2006-05-25
- BAKER JR, LEE R GA2020-01-14 active