Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9UC callsign genealogy
Currently held by Hejtmanek, Philip J
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 K9UC's current licensee, walking backwards.
- Hejtmanek, Philip JWIgranted 2013-12-31cancelled 2020-01-03
Successor callsigns
Callsigns held now by people who previously held K9UC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9UC, oldest first.
- ROSICH, JOHN J IN2016-09-06 → cancelled 2017-12-14
- Hejtmanek, Philip J TN2020-01-03 active