Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5ISN callsign genealogy
Currently held by Golson, Thomas M
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 KD5ISN's current licensee, walking backwards.
- Golson, Thomas MNMgranted 2023-07-04cancelled 2023-07-25
Successor callsigns
Callsigns held now by people who previously held KD5ISN.
- Golson, Thomas MNMgranted 2025-03-28
All historical holders
Every license row we've seen with the callsign KD5ISN, oldest first.
- Golson, Thomas M TX1999-12-02 → cancelled 2011-12-03
- Golson, Thomas M NM2023-07-25 → cancelled 2025-03-28