Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3OBA callsign genealogy
Currently held by CLARK, RANDALL L
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 N3OBA's current licensee, walking backwards.
- Clark, Randall LSCgranted 2024-01-24cancelled 2024-02-16
Successor callsigns
Callsigns held now by people who previously held N3OBA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3OBA, oldest first.
- CLARK, RANDALL L PA1993-01-26 → cancelled 2005-01-27
- Clark, Randall L SC2024-02-16 active