Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4PSO callsign genealogy
Currently held by Petty Sr, Bobby L
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 KO4PSO's current licensee, walking backwards.
- Petty Sr, Bobby LTNgranted 2021-04-21cancelled 2021-04-22
Successor callsigns
Callsigns held now by people who previously held KO4PSO.
No current licensee on record previously held this callsign.