Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4CAR callsign genealogy
Currently held by Kersten, Frank S
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 N4CAR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4CAR.
- Kersten, Frank SFLgranted 2021-09-17
All historical holders
Every license row we've seen with the callsign N4CAR, oldest first.
- LYON, WILLIAM B NC2009-05-07 → cancelled 2021-08-03
- Kersten, Frank S FL2021-09-17 → cancelled 2024-12-24