Confidence: Medium · Source: FCC ULS · As of 2026-09-11
AD7SL callsign genealogy
Currently held by Schumacher, Paul E
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 AD7SL's current licensee, walking backwards.
- Schumacher, Paul EAZgranted 2001-08-10cancelled 2008-02-29
Successor callsigns
Callsigns held now by people who previously held AD7SL.
No current licensee on record previously held this callsign.