Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT9K callsign genealogy
Currently held by SHEEHAN, JAMES L
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 KT9K's current licensee, walking backwards.
- KD9IPZcancelledOhio Valley Amateur Radio ClubINgranted 2017-05-19cancelled 2020-03-17
Successor callsigns
Callsigns held now by people who previously held KT9K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KT9K, oldest first.
- SHEEHAN, JAMES L IN2007-11-30 → cancelled 2020-02-26
- Ohio Valley Amateur Radio Club IN2020-03-17 active