Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5CDF callsign genealogy
Currently held by Falkowski, Chris D
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 K5CDF's current licensee, walking backwards.
- Falkowski, Chris DTXgranted 2019-11-06cancelled 2019-11-26
Successor callsigns
Callsigns held now by people who previously held K5CDF.
No current licensee on record previously held this callsign.