Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4KTH callsign genealogy
Currently held by FROST, WILLIAM R
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 KG4KTH's current licensee, walking backwards.
- FROST, WILLIAM RVAgranted 1995-05-30cancelled 2000-12-09
Successor callsigns
Callsigns held now by people who previously held KG4KTH.
- Frost, William RHIgranted 1995-05-30cancelled 2001-10-26