Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AK4UD callsign genealogy
Currently held by Chellis, William C
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 AK4UD's current licensee, walking backwards.
- Chellis, William CFLgranted 2008-10-24cancelled 2012-05-04
Successor callsigns
Callsigns held now by people who previously held AK4UD.
No current licensee on record previously held this callsign.