Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6TDF callsign genealogy
Currently held by Roy, David 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 K6TDF's current licensee, walking backwards.
- Roy, David ACAgranted 2012-08-10cancelled 2015-10-06
Successor callsigns
Callsigns held now by people who previously held K6TDF.
No current licensee on record previously held this callsign.