Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NC4EF callsign genealogy
Currently held by Fitschen, Erich C
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 NC4EF's current licensee, walking backwards.
- Fitschen, Erich CNCgranted 2022-06-07cancelled 2024-08-10
Successor callsigns
Callsigns held now by people who previously held NC4EF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NC4EF, oldest first.
- BETTINGER, RICHARD J NC2010-12-31 → cancelled 2023-01-04
- Fitschen, Erich C NC2024-08-10 active