Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4UDI callsign genealogy
Currently held by Farley Jr, James E
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 KK4UDI's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK4UDI.
- Farley Jr, James EVAgranted 2013-12-27cancelled 2026-03-07