Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4DS callsign genealogy
Currently held by REVELS, ROBERT R
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 KD4DS's current licensee, walking backwards.
- SWEENEY, DAVID JFLgranted 2011-08-23cancelled 2018-03-31
Successor callsigns
Callsigns held now by people who previously held KD4DS.
- REVELS, ROBERT RFLgranted 2000-01-28cancelled 2000-03-21
All historical holders
Every license row we've seen with the callsign KD4DS, oldest first.
- REVELS, ROBERT R FL1993-01-12 → cancelled 2000-01-28
- SWEENEY, DAVID J FL2018-03-31 active