Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4UDX callsign genealogy
Currently held by Spicer, Alan G
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 KA4UDX's current licensee, walking backwards.
- Spicer, Alan GFLgranted 2004-05-14cancelled 2004-06-02
Successor callsigns
Callsigns held now by people who previously held KA4UDX.
No current licensee on record previously held this callsign.