Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9K callsign genealogy
Currently held by HOFFMANN JR, DAVID P
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 KA9K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KA9K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA9K, oldest first.
- WILSON, NELVIN K IL2012-05-22 → cancelled 2024-07-23
- HOFFMANN JR, DAVID P WI2024-08-09 active