Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1FU callsign genealogy
Currently held by BARTER, JON 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 K1FU's current licensee, walking backwards.
- Lawn, Michael DNYgranted 2020-01-06cancelled 2021-05-25
Successor callsigns
Callsigns held now by people who previously held K1FU.
All historical holders
Every license row we've seen with the callsign K1FU, oldest first.
- BARTER, JON E AL2006-12-07 → cancelled 2014-03-12
- Lord, Andrew M WA2016-04-01 → cancelled 2016-12-30
- Harris, Stephen M MA2019-02-14 → cancelled 2019-05-04
- Lawn, Michael NY2021-05-25 active