Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC6RDF callsign genealogy
Currently held by Tadlock, Jan E
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 KC6RDF's current licensee, walking backwards.
- Tadlock, Jan ECAgranted 2008-06-13cancelled 2008-07-08
Successor callsigns
Callsigns held now by people who previously held KC6RDF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6RDF, oldest first.
- MELTON, GLEN CA1991-01-22 → cancelled 2003-01-23
- Tadlock, Jan E AZ2018-08-23 active