Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3THI callsign genealogy
Currently held by MOORE, WILLIAM B
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 K3THI's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K3THI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3THI, oldest first.
- MOORE, WILLIAM B PA1998-02-04 → cancelled 2010-02-05
- DEWALT, HAROLD J OH2014-03-11 → cancelled 2026-03-12