Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9RJO callsign genealogy
Currently held by KASPRZAK, RAYMOND P
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 K9RJO's current licensee, walking backwards.
- Ochenas, Robert JINgranted 2025-07-01cancelled 2026-05-27
Successor callsigns
Callsigns held now by people who previously held K9RJO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9RJO, oldest first.
- KASPRZAK, RAYMOND P IL2014-01-09 → cancelled 2026-04-07
- Ochenas, Robert J IN2026-05-27 active