Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9WTF callsign genealogy
Currently held by Ritter, David M
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 KC9WTF's current licensee, walking backwards.
- Packer, Evan NNVgranted 2022-08-18cancelled 2025-01-28
Successor callsigns
Callsigns held now by people who previously held KC9WTF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC9WTF, oldest first.
- Ritter, David M IL2012-10-18 → cancelled 2024-11-21
- Packer, Evan N NV2025-01-28 active