Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4NOS callsign genealogy
Currently held by Nosker, David A
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 K4NOS's current licensee, walking backwards.
- Nosker, David AFLgranted 2020-01-21cancelled 2020-03-24
Successor callsigns
Callsigns held now by people who previously held K4NOS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4NOS, oldest first.
- OWINGS, HOWARD KY1988-07-12 → cancelled 2000-07-13
- Nosker, David A FL2020-03-24 active