Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4WTH callsign genealogy
Currently held by Eskola, Robert 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 K4WTH's current licensee, walking backwards.
- Eskola, Robert AWIgranted 2017-10-12cancelled 2017-10-31
Successor callsigns
Callsigns held now by people who previously held K4WTH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4WTH, oldest first.
- MC MULLAN, HORACE A GA2004-10-21 → cancelled 2017-01-13
- Eskola, Robert A MI2017-10-31 active