Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC6BFU callsign genealogy
Currently held by RENFREE, ROBERT 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 KC6BFU's current licensee, walking backwards.
- RENFREE, ROBERT ECAgranted 2007-01-03cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held KC6BFU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6BFU, oldest first.
- RENFREE, ROBERT E CA1989-04-25 → cancelled 2001-04-26
- RENFREE, ROBERT E CA2017-02-07 active