Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4QOK callsign genealogy
Currently held by BURKHALTER, LAWRENCE E
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 KD4QOK's current licensee, walking backwards.
- Burkhalter, Lawrence EALgranted 2025-04-30cancelled 2025-05-20
Successor callsigns
Callsigns held now by people who previously held KD4QOK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4QOK, oldest first.
- BURKHALTER, LAWRENCE E AL1993-12-28 → cancelled 2005-12-29
- Burkhalter, Lawrence E AL2025-05-20 active