Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC1FU callsign genealogy
Currently held by Nef, Lars
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 AC1FU's current licensee, walking backwards.
- Nef, LarsNHgranted 2017-11-14cancelled 2018-08-22
Successor callsigns
Callsigns held now by people who previously held AC1FU.
- Nef, LarsNHgranted 2018-09-25