Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0RSN callsign genealogy
Currently held by ROTH, MATTHEW 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 N0RSN's current licensee, walking backwards.
- Nichol, Robert SMOgranted 2014-01-15cancelled 2015-04-28
Successor callsigns
Callsigns held now by people who previously held N0RSN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0RSN, oldest first.
- ROTH, MATTHEW D MO1992-03-24 → cancelled 2004-03-25
- Nichol, Robert S MO2026-01-21 active