Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9YKF callsign genealogy
Currently held by Trombla, David A
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 W9YKF's current licensee, walking backwards.
- Trombla, David AWIgranted 2016-06-21cancelled 2016-11-11
Successor callsigns
Callsigns held now by people who previously held W9YKF.
No current licensee on record previously held this callsign.