Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4RK callsign genealogy
Currently held by ABERCROMBIE, THOMAS 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 KD4RK's current licensee, walking backwards.
- KORECKI JR, RICHARD JFLgranted 2011-12-12cancelled 2012-05-04
Successor callsigns
Callsigns held now by people who previously held KD4RK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4RK, oldest first.
- ABERCROMBIE, THOMAS R VA1996-02-28 → cancelled 2000-07-28
- KORECKI JR, Richard J PA2022-03-29 active