Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4KPK callsign genealogy
Currently held by Raab Jr, Melvin C
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 KO4KPK's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KO4KPK.
- Raab Jr, Melvin CSCgranted 2021-05-28