Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9JWB callsign genealogy
Currently held by Byrnes, Jeffrey 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 N9JWB's current licensee, walking backwards.
- Byrnes, Jeffrey WINgranted 2011-12-16cancelled 2012-04-27
Successor callsigns
Callsigns held now by people who previously held N9JWB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9JWB, oldest first.
- HANENBURG, JOHN D IN1990-06-19 → cancelled 2002-06-20
- Byrnes, Jeffrey W TN2022-09-20 active