Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4WD callsign genealogy
Currently held by SCHWARZ, 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 KM4WD's current licensee, walking backwards.
- KB4ODLno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KM4WD.
- SCHWARZ, FRANK MGAgranted 2024-11-08