Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7THO callsign genealogy
Currently held by Thornton, William 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 K7THO's current licensee, walking backwards.
- Thornton, William MORgranted 2005-10-17cancelled 2006-01-21
Successor callsigns
Callsigns held now by people who previously held K7THO.
No current licensee on record previously held this callsign.