Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4HAM callsign genealogy
Currently held by VASILIS, JOHN J
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 KD4HAM's current licensee, walking backwards.
- VASILIS, VICKI AFLgranted 2008-02-26cancelled 2010-05-25
Successor callsigns
Callsigns held now by people who previously held KD4HAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4HAM, oldest first.
- VASILIS, JOHN J FL2002-08-28 → cancelled 2009-08-11
- VASILIS, VICKI A FL2020-06-01 active