Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9PDY callsign genealogy
Currently held by Parker, Colin 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 KC9PDY's current licensee, walking backwards.
- Parker, Colin JINgranted 2024-06-15cancelled 2024-07-06
Successor callsigns
Callsigns held now by people who previously held KC9PDY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC9PDY, oldest first.
- Parker, Colin J IN2009-02-27 → cancelled 2021-03-02
- Parker, Colin J IN2024-07-06 active