Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4GNM callsign genealogy
Currently held by SMITH, DONALD 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 K4GNM's current licensee, walking backwards.
- Alonso, Jose MFLgranted 2024-12-04cancelled 2024-12-24
Successor callsigns
Callsigns held now by people who previously held K4GNM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4GNM, oldest first.
- SMITH, DONALD W TN2004-08-17 → cancelled 2016-10-21
- Alonso, Jose M FL2024-12-24 active