Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1THM callsign genealogy
Currently held by Moss, Thomas 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 W1THM's current licensee, walking backwards.
- Moss, Thomas ANYgranted 2013-03-13cancelled 2013-04-02
Successor callsigns
Callsigns held now by people who previously held W1THM.
No current licensee on record previously held this callsign.