Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF5BA callsign genealogy
Currently held by Allen, Robert 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 KF5BA's current licensee, walking backwards.
- Allen, Robert MMSgranted 2010-01-05cancelled 2010-08-24
Successor callsigns
Callsigns held now by people who previously held KF5BA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF5BA, oldest first.
- SHERLIN, JEFFERSON A AR1991-02-12 → cancelled 2003-02-13
- Allen, Robert M MS2020-06-13 active