Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF6ZBY callsign genealogy
Currently held by Groot, Robert W
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 KF6ZBY's current licensee, walking backwards.
- Groot, Robert WCAgranted 1999-10-05cancelled 1999-10-16
Successor callsigns
Callsigns held now by people who previously held KF6ZBY.
No current licensee on record previously held this callsign.