Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7DB callsign genealogy
Currently held by BOTTORFF, DENNIS E
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 KD7DB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD7DB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD7DB, oldest first.
- YAMANAKA, JACK H MT2008-10-14 → cancelled 2020-12-04
- BOTTORFF, DENNIS E OR2022-03-22 active