Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC3KTM callsign genealogy
Currently held by SMARZ, JOHN 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 KC3KTM's current licensee, walking backwards.
- Smarz, John PPAgranted 2015-03-06cancelled 2015-05-30
Successor callsigns
Callsigns held now by people who previously held KC3KTM.
No current licensee on record previously held this callsign.