Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3RTW callsign genealogy
Currently held by Walberg, Sean
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 N3RTW's current licensee, walking backwards.
- Walberg, SeanVAgranted 2019-10-30cancelled 2022-10-01
Successor callsigns
Callsigns held now by people who previously held N3RTW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3RTW, oldest first.
- BROENNIMANN, ACHILLE E MD1994-03-29 → cancelled 2006-03-30
- Walberg, Sean VA2022-10-01 active