Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7STM callsign genealogy
Currently held by PATRICK, JOHN B
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 K7STM's current licensee, walking backwards.
- KF7GVMcancelledTHE HIGH PLAINS CONTEST CLUBWYgranted 2010-01-04cancelled 2011-05-21
Successor callsigns
Callsigns held now by people who previously held K7STM.
- PATRICK, JOHN BWYgranted 2019-10-01
All historical holders
Every license row we've seen with the callsign K7STM, oldest first.
- PATRICK, JOHN B WY2007-01-10 → cancelled 2009-04-25
- THE HIGH PLAINS CONTEST CLUB WY2022-02-26 active