Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0F callsign genealogy
Currently held by Franck, Donald R
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 AD0F's current licensee, walking backwards.
- Franck, Donald RMNgranted 2000-06-07cancelled 2002-08-06
Successor callsigns
Callsigns held now by people who previously held AD0F.
- HEINRICH, RICHARD EVAgranted 2016-08-11