Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4NKO callsign genealogy
Currently held by Olson, Noah 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 W4NKO's current licensee, walking backwards.
- Olson, Noah KFLgranted 2022-06-22cancelled 2022-07-16
Successor callsigns
Callsigns held now by people who previously held W4NKO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4NKO, oldest first.
- MELTON, JO F TN2000-06-23 → cancelled 2012-06-26
- Olson, Noah K FL2022-07-16 active