Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD8FNN callsign genealogy
Currently held by Zapolnik, Robert T
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 KD8FNN's current licensee, walking backwards.
- Zapolnik, Robert TMIgranted 2007-03-12cancelled 2007-03-16
Successor callsigns
Callsigns held now by people who previously held KD8FNN.
- Zapolnik, Robert TMIgranted 2017-01-10