Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC5HO callsign genealogy
Currently held by FRIEDRICH, KLAUS DIETER
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 AC5HO's current licensee, walking backwards.
- KK5TPno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AC5HO.
No current licensee on record previously held this callsign.