Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0JM callsign genealogy
Currently held by Marshall, John G
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 W0JM's current licensee, walking backwards.
- MARTIN, JEFFREY DMNgranted 2006-09-26cancelled 2011-10-12
Successor callsigns
Callsigns held now by people who previously held W0JM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0JM, oldest first.
- Marshall, John G KS2008-02-26 → cancelled 2009-09-20
- MARTIN, JEFFREY D MN2021-09-10 active