Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9MW callsign genealogy
Currently held by Johnson, Charles E
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 AB9MW's current licensee, walking backwards.
- Weatherhogg, Mark TWIgranted 2010-12-17cancelled 2020-10-24
- N7OOHno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AB9MW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB9MW, oldest first.
- Johnson, Charles E WI2006-06-08 → cancelled 2018-06-09
- Weatherhogg, Mark T WI2020-10-24 active