Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6RJA callsign genealogy
Currently held by DUFFIN, WILLIAM W
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 N6RJA's current licensee, walking backwards.
- ALEXANDER, ROBERT JCAgranted 2002-02-21cancelled 2004-05-26
Successor callsigns
Callsigns held now by people who previously held N6RJA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6RJA, oldest first.
- DUFFIN, WILLIAM W CA1988-02-02 → cancelled 2000-02-03
- ALEXANDER, ROBERT J CA2024-03-19 active