Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9JOS callsign genealogy
Currently held by SEIFERT, JOSEPH 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 N9JOS's current licensee, walking backwards.
- SEIFERT, JOSEPH WWIgranted 2017-04-20cancelled 2021-05-11
Successor callsigns
Callsigns held now by people who previously held N9JOS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9JOS, oldest first.
- HOOD, RANDY J IN1993-11-09 → cancelled 2005-11-10
- SEIFERT, JOSEPH W WI2021-05-11 active