Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9WRW callsign genealogy
Currently held by MARTZ, MICHAEL L
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 N9WRW's current licensee, walking backwards.
- Martz, Michael LARgranted 2016-12-07cancelled 2016-12-28
Successor callsigns
Callsigns held now by people who previously held N9WRW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9WRW, oldest first.
- MARTZ, MICHAEL L IL1994-04-12 → cancelled 2006-04-14
- Martz, Michael L WI2016-12-28 active