Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4AKO callsign genealogy
Currently held by Kosko, Arno 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 W4AKO's current licensee, walking backwards.
- Kosko, Arno JVAgranted 2004-01-06cancelled 2004-01-31
Successor callsigns
Callsigns held now by people who previously held W4AKO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4AKO, oldest first.
- GILBERT, WARD T AL1988-03-29 → cancelled 2000-03-30
- Kosko, Arno J VA2013-11-06 → cancelled 2026-03-07