Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7TDY callsign genealogy
Currently held by SZABO, ROBERT B
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 N7TDY's current licensee, walking backwards.
- SZABO, ROBERT BORgranted 2023-11-15cancelled 2023-12-27
Successor callsigns
Callsigns held now by people who previously held N7TDY.
- SZABO, ROBERT BORgranted 2026-07-21
All historical holders
Every license row we've seen with the callsign N7TDY, oldest first.
- ORNER, RICK C ID2011-07-09 → cancelled 2023-08-08
- SZABO, ROBERT B OR2023-12-27 → cancelled 2026-07-21