Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5EMX callsign genealogy
Currently held by SUMNER JR, DONALD M
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 W5EMX's current licensee, walking backwards.
- Jones, Danny LOKgranted 2014-03-12cancelled 2017-12-30
Successor callsigns
Callsigns held now by people who previously held W5EMX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5EMX, oldest first.
- SUMNER JR, DONALD M TX1996-12-31 → cancelled 2008-09-25
- Jones, Danny L OK2017-12-30 active