Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0ADU callsign genealogy
Currently held by SIKORA, JEREMY 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 N0ADU's current licensee, walking backwards.
- Sikora, Raymond FAZgranted 2019-06-12cancelled 2019-07-06
Successor callsigns
Callsigns held now by people who previously held N0ADU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0ADU, oldest first.
- SIKORA, JEREMY F AZ2001-01-10 → cancelled 2013-04-10
- Sikora, Raymond F AZ2019-07-06 active