Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0MMJ callsign genealogy
Currently held by SHIPPY, RALPH 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 W0MMJ's current licensee, walking backwards.
- JONES, MATTHEW MCOgranted 2021-01-25cancelled 2021-02-17
Successor callsigns
Callsigns held now by people who previously held W0MMJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0MMJ, oldest first.
- SHIPPY, RALPH W MO1987-08-25 → cancelled 1999-09-01
- JONES, MATTHEW M CO2021-02-17 active