Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0STU callsign genealogy
Currently held by COMBS, DAVID S
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 N0STU's current licensee, walking backwards.
- WILLIAMS, BERRY SCOgranted 2015-02-19cancelled 2019-04-02
Successor callsigns
Callsigns held now by people who previously held N0STU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0STU, oldest first.
- COMBS, DAVID S KS1992-05-26 → cancelled 2004-05-27
- WILLIAMS, BERRY S CO2019-04-02 active