Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD1JF callsign genealogy
Currently held by Ferro, John F
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 AD1JF's current licensee, walking backwards.
- Ferro, John FVAgranted 2025-03-25cancelled 2025-06-17
Successor callsigns
Callsigns held now by people who previously held AD1JF.
No current licensee on record previously held this callsign.