Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7AMU callsign genealogy
Currently held by DURTSCHI, FREDRICK 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 N7AMU's current licensee, walking backwards.
- DURTSCHI, FREDRICK SUTgranted 1998-09-18cancelled 2008-03-18
Successor callsigns
Callsigns held now by people who previously held N7AMU.
- SHOOK, CLAUDE EWAgranted 2019-11-27