Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1OKO callsign genealogy
Currently held by Olsen, Oliver K
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 W1OKO's current licensee, walking backwards.
- OLSEN, OLIVER KVTgranted 2004-02-18cancelled 2004-03-19
Successor callsigns
Callsigns held now by people who previously held W1OKO.
No current licensee on record previously held this callsign.