Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4MOO callsign genealogy
Currently held by BUCHNER, HERBERT 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 KF4MOO's current licensee, walking backwards.
- STROMBERG, JACKNDgranted 2021-07-12cancelled 2021-07-30
Successor callsigns
Callsigns held now by people who previously held KF4MOO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4MOO, oldest first.
- BUCHNER, HERBERT E VA2006-07-19 → cancelled 2018-10-16
- Stromberg, Jack ND2021-07-30 active