Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7KOT callsign genealogy
Currently held by PIEHNIK, JAMES
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 K7KOT's current licensee, walking backwards.
- PIEHNIK, JAMESCAgranted 2023-05-23cancelled 2025-05-02
Successor callsigns
Callsigns held now by people who previously held K7KOT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7KOT, oldest first.
- Tillett, Stephen R WA2004-08-13 → cancelled 2016-09-17
- PIEHNIK, JAMES CA2025-05-02 active