Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0USD callsign genealogy
Currently held by GROGGER, STEVEN R
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 N0USD's current licensee, walking backwards.
- Bailey, JoseCOgranted 2020-03-20cancelled 2020-04-10
Successor callsigns
Callsigns held now by people who previously held N0USD.
- Zabel, Michael BSCgranted 2017-03-02
All historical holders
Every license row we've seen with the callsign N0USD, oldest first.
- GROGGER, STEVEN R CO1992-12-22 → cancelled 2004-12-23
- Zabel, Michael B SC2007-05-30 → cancelled 2013-12-24
- Bailey, Jose CO2020-04-10 active