Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4OEM callsign genealogy
Currently held by MARSHALL, GARY 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 WA4OEM's current licensee, walking backwards.
- Marshall, Gary LFLgranted 2026-04-10cancelled 2026-08-11
Successor callsigns
Callsigns held now by people who previously held WA4OEM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4OEM, oldest first.
- MARSHALL, GARY L FL2007-02-16 → cancelled 2019-04-05
- Marshall, Gary L FL2026-08-11 active