Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD5JDF callsign genealogy
Currently held by Lerma, John 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 KD5JDF's current licensee, walking backwards.
- FOWLER, JEFFERY DTXgranted 2017-07-07cancelled 2017-08-08
Successor callsigns
Callsigns held now by people who previously held KD5JDF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD5JDF, oldest first.
- Lerma, John M TX2000-02-02 → cancelled 2012-02-03
- FOWLER, JEFFERY D TX2017-08-08 active