Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4YSQ callsign genealogy
Currently held by Dowdy, Joe D
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 KO4YSQ's current licensee, walking backwards.
- Dowdy, Joe DVAgranted 2021-05-07cancelled 2022-03-18
Successor callsigns
Callsigns held now by people who previously held KO4YSQ.
No current licensee on record previously held this callsign.