Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD9K callsign genealogy
Currently held by Bair, Jeffrey W
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 KD9K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD9K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD9K, oldest first.
- BAIR, RUSSELL E OH2013-07-09 → cancelled 2025-09-03
- Bair, Jeffrey W TN2025-09-23 active