Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ELM callsign genealogy
Currently held by MASON, EDGAR 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 W4ELM's current licensee, walking backwards.
- MASON, EDGAR LFLgranted 1991-07-02cancelled 2000-09-26
Successor callsigns
Callsigns held now by people who previously held W4ELM.
No current licensee on record previously held this callsign.