Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9PDM callsign genealogy
Currently held by Vail, Christopher J
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 KC9PDM'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 KC9PDM.
- Vail, Christopher JILgranted 2020-12-30