Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0OHJ callsign genealogy
Currently held by THOMSEN, STUART D
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 N0OHJ's current licensee, walking backwards.
- Mansfield, Mark WCOgranted 2012-11-15cancelled 2022-07-12
Successor callsigns
Callsigns held now by people who previously held N0OHJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0OHJ, oldest first.
- THOMSEN, STUART D NE1991-06-18 → cancelled 2003-06-19
- Mansfield, Mark W CO2022-07-12 active