Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4CAN callsign genealogy
Currently held by MC DONALD, CHARLES R
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 K4CAN's current licensee, walking backwards.
- MCDONALD JR, KIRBY RCOgranted 2018-09-11cancelled 2018-10-06
Successor callsigns
Callsigns held now by people who previously held K4CAN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4CAN, oldest first.
- MC DONALD, CHARLES R CA2006-04-21 → cancelled 2018-06-19
- MCDONALD JR, KIRBY R WA2018-10-06 active