Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0MJH callsign genealogy
Currently held by Henderson, Martin J
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 W0MJH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W0MJH.
- Henderson, Martin JIAgranted 2026-06-26
All historical holders
Every license row we've seen with the callsign W0MJH, oldest first.
- Hoskins, Michael J CO2014-04-26 → cancelled 2026-04-28
- Henderson, Martin J IA2026-05-30 → cancelled 2026-06-26