Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4SIX callsign genealogy
Currently held by SHERROD, RAYMOND 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 KD4SIX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD4SIX.
- Bordenkircher, TomSCgranted 2023-01-14cancelled 2025-03-29
All historical holders
Every license row we've seen with the callsign KD4SIX, oldest first.
- SHERROD, RAYMOND D FL1992-08-18 → cancelled 2004-08-19
- Bordenkircher, Tom SC2022-04-26 → cancelled 2023-01-14