Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9CMX callsign genealogy
Currently held by FULLERTON, HERBERT W
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 W9CMX's current licensee, walking backwards.
- Fullerton, Herb HCAgranted 2023-04-11cancelled 2023-04-29
Successor callsigns
Callsigns held now by people who previously held W9CMX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9CMX, oldest first.
- FULLERTON, HERBERT W IL2005-01-18 → cancelled 2017-03-17
- Fullerton, Herbert H CA2023-04-29 active