Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9KKK callsign genealogy
Currently held by Schmidt, John 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 W9KKK's current licensee, walking backwards.
- Schmidt, John EWIgranted 2016-09-19cancelled 2016-10-08
Successor callsigns
Callsigns held now by people who previously held W9KKK.
No current licensee on record previously held this callsign.