Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9GMO callsign genealogy
Currently held by MORRISON SR, WILLIAM O
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 W9GMO's current licensee, walking backwards.
- MORRISON, CHRISTOPHER RCAgranted 2017-07-21cancelled 2017-08-19
Successor callsigns
Callsigns held now by people who previously held W9GMO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9GMO, oldest first.
- MORRISON SR, WILLIAM O IL2003-10-24 → cancelled 2015-10-20
- MORRISON, CHRISTOPHER R CA2017-08-19 active