Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KK4UOR callsign genealogy
Currently held by Carmichael, William A
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 KK4UOR'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 KK4UOR.
- Carmichael, William ATNgranted 2014-06-24cancelled 2026-06-25