Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4WMQ callsign genealogy
Currently held by SPRING III, RALPH E
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 WB4WMQ's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WB4WMQ.
- SPRING III, RALPH EVAgranted 2020-09-02