Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3GGG callsign genealogy
Currently held by HEISNER, ROBERT I
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 N3GGG's current licensee, walking backwards.
- Gannon, Grant GMIgranted 2023-12-27cancelled 2024-01-17
Successor callsigns
Callsigns held now by people who previously held N3GGG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3GGG, oldest first.
- HEISNER, ROBERT I MD1988-05-24 → cancelled 2000-05-25
- Gannon, Grant G MI2024-01-17 active