Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM9I callsign genealogy
Currently held by Cartnal, Joseph D
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 WM9I's current licensee, walking backwards.
- Cartnal, Joseph DILgranted 2012-04-13cancelled 2012-05-26
Successor callsigns
Callsigns held now by people who previously held WM9I.
- CHRISTIANSEN, REED LMNgranted 2017-08-24
All historical holders
Every license row we've seen with the callsign WM9I, oldest first.
- CHRISTIANSEN, REED L WI2001-09-11 → cancelled 2007-11-14
- Cartnal, Joseph D IL2022-03-26 active