Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9VDX callsign genealogy
Currently held by Singer, Eric S
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 KC9VDX's current licensee, walking backwards.
- Singer, Eric SILgranted 2025-02-07cancelled 2025-02-25
Successor callsigns
Callsigns held now by people who previously held KC9VDX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC9VDX, oldest first.
- SINGER, ERIC S IL2011-12-22 → cancelled 2023-12-23
- Singer, Eric S IL2025-02-25 active