Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0FMB callsign genealogy
Currently held by BAUMGARTNER, FREDERICK 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 K0FMB's current licensee, walking backwards.
- BAUMGARTNER, FREDERICK MCOgranted 2003-09-23cancelled 2011-07-01
- KA9NEHno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K0FMB.
No current licensee on record previously held this callsign.