Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5MJM callsign genealogy
Currently held by MURDAY, MATTHEW 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 KD5MJM's current licensee, walking backwards.
- MURDAY, MATTHEW JTXgranted 2014-02-18cancelled 2014-03-18
Successor callsigns
Callsigns held now by people who previously held KD5MJM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD5MJM, oldest first.
- Shafer, Arthur J TX2000-11-28 → cancelled 2012-11-29
- MURDAY, MATTHEW J TX2024-03-15 active