Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7TES callsign genealogy
Currently held by GROBBELAAR, JAN F
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 KD7TES's current licensee, walking backwards.
- GROBBELAAR, JAN FWAgranted 2002-10-11cancelled 2002-11-02
Successor callsigns
Callsigns held now by people who previously held KD7TES.
- GROBBELAAR, JANWAgranted 2021-11-27