Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9TEK callsign genealogy
Currently held by GRABER, RONALD 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 N9TEK's current licensee, walking backwards.
- Kelemen, Thomas EMAgranted 2026-06-11cancelled 2026-07-07
Successor callsigns
Callsigns held now by people who previously held N9TEK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9TEK, oldest first.
- GRABER, RONALD E IN2003-01-21 → cancelled 2015-04-21
- Kelemen, Thomas E MA2026-07-07 active