Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3ONM callsign genealogy
Currently held by Markert, Olaf N
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 N3ONM's current licensee, walking backwards.
- MARKERT, OLAF NPAgranted 1999-06-14cancelled 2000-12-01
Successor callsigns
Callsigns held now by people who previously held N3ONM.
All historical holders
Every license row we've seen with the callsign N3ONM, oldest first.
- Markert, Olaf N PA2000-12-01 → cancelled 2006-03-11
- —— → cancelled 1998-11-02