Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD9IF callsign genealogy
Currently held by Birdsall, Ryan D
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 AD9IF's current licensee, walking backwards.
- Birdsall, Ryan DWIgranted 2024-01-19cancelled 2026-02-09
Successor callsigns
Callsigns held now by people who previously held AD9IF.
No current licensee on record previously held this callsign.