Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9DPM callsign genealogy
Currently held by Maxwell III, 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 KC9DPM'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 KC9DPM.
- Maxwell III, William ANYgranted 2025-11-26