Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KF4ZKB callsign genealogy
Currently held by BECK, MICHAEL 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 KF4ZKB's current licensee, walking backwards.
- BECK, MICHAEL Rcancelled 1998-07-18
Successor callsigns
Callsigns held now by people who previously held KF4ZKB.
No current licensee on record previously held this callsign.