Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1ROR callsign genealogy
Currently held by Trefethen, Jim
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 N1ROR's current licensee, walking backwards.
- Trefethen, JimAKgranted 2021-03-15cancelled 2021-04-02
Successor callsigns
Callsigns held now by people who previously held N1ROR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1ROR, oldest first.
- TREFETHEN, JAMES E VT1994-08-10 → cancelled 2006-03-30
- Trefethen, Jim AK2021-04-02 active