Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9NZO callsign genealogy
Currently held by Polish-American Amateur Radio Operators Society
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 KD9NZO's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD9NZO.
- NA9PLactivePolish-American Amateur Radio Operators SocietyILgranted 2019-11-15