Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD8EF callsign genealogy
Currently held by RYAN JR, ROBERT M
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 AD8EF's current licensee, walking backwards.
- RYAN JR, ROBERT MMIgranted 2015-07-09cancelled 2019-06-20
Successor callsigns
Callsigns held now by people who previously held AD8EF.
- RYAN JR, ROBERT MOHgranted 2021-01-29