Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA3CDQ callsign genealogy
Currently held by MAC WILLIAMS, JAMES 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 KA3CDQ'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 KA3CDQ.
- MAC WILLIAMS, JAMES RMDgranted 2020-01-21