Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KS0TLM callsign genealogy
Currently held by MAHAN, THOMAS 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 KS0TLM's current licensee, walking backwards.
- MAHAN, THOMAS LKSgranted 2010-05-11cancelled 2010-06-02
Successor callsigns
Callsigns held now by people who previously held KS0TLM.
- MAHAN, THOMAS LKSgranted 2010-06-02cancelled 2019-05-10