Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4OSK callsign genealogy
Currently held by OSKOV, ATANAS
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 N4OSK's current licensee, walking backwards.
- OSKOV, ATANASWAgranted 2021-01-11cancelled 2021-02-02
Successor callsigns
Callsigns held now by people who previously held N4OSK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4OSK, oldest first.
- BEGEAL, FREDA J FL1994-11-02 → cancelled 2000-09-07
- OSKOV, ATANAS WA2021-02-02 active