Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5OCK callsign genealogy
Currently held by Sung, Il
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 N5OCK's current licensee, walking backwards.
- Sung, IlNJgranted 2022-10-22cancelled 2022-11-15
Successor callsigns
Callsigns held now by people who previously held N5OCK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5OCK, oldest first.
- GOULD, ROBERT H MI2009-05-05 → cancelled 2021-05-12
- Sung, Il NJ2022-11-15 active