Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4FUM callsign genealogy
Currently held by CRISSMAN, SHERRY D
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 KD4FUM's current licensee, walking backwards.
- Crissman, Sherry DVAgranted 2025-03-04cancelled 2025-03-22
Successor callsigns
Callsigns held now by people who previously held KD4FUM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4FUM, oldest first.
- CRISSMAN, SHERRY D VA1991-10-15 → cancelled 2003-10-16
- Crissman, Sherry D VA2025-03-22 active