Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8OPK callsign genealogy
Currently held by Kooyer, Matthew J
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 W8OPK's current licensee, walking backwards.
- Kooyer, Matthew JMIgranted 2023-10-17cancelled 2023-12-19
Successor callsigns
Callsigns held now by people who previously held W8OPK.
No current licensee on record previously held this callsign.