Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD9FDI callsign genealogy
Currently held by McFarland, David B
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 KD9FDI's current licensee, walking backwards.
- McFarland, David BINgranted 2015-12-02cancelled 2015-12-09
Successor callsigns
Callsigns held now by people who previously held KD9FDI.
- McFarland, David BINgranted 2025-12-22