Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5EF callsign genealogy
Currently held by Hernandez, Adam
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 KD5EF's current licensee, walking backwards.
- Hernandez, AdamOKgranted 2023-10-25cancelled 2024-04-30
Successor callsigns
Callsigns held now by people who previously held KD5EF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD5EF, oldest first.
- BARTELS, SHELBY H LA1997-05-28 → cancelled 2009-05-29
- Hernandez, Adam OK2024-04-30 active