Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS5SDR callsign genealogy
Currently held by Simon, Michael A
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 KS5SDR's current licensee, walking backwards.
- Simon, Michael ATXgranted 2015-07-31cancelled 2018-04-06
Successor callsigns
Callsigns held now by people who previously held KS5SDR.
- Simon, Michael ATXgranted 2018-12-22