Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TOQ callsign genealogy
Currently held by Farmer, Robert S
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 K4TOQ's current licensee, walking backwards.
- Farmer, Robert STNgranted 2016-01-14cancelled 2016-02-06
Successor callsigns
Callsigns held now by people who previously held K4TOQ.
No current licensee on record previously held this callsign.