Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1JGO callsign genealogy
Currently held by Grossmann, Julio E
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 N1JGO's current licensee, walking backwards.
- Grossmann, Julio EFLgranted 2026-03-17cancelled 2026-04-04
Successor callsigns
Callsigns held now by people who previously held N1JGO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1JGO, oldest first.
- SCHULZ, HERMAN R CT2001-04-11 → cancelled 2013-06-05
- Grossmann, Julio E FL2026-04-04 active