Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF7TDC callsign genealogy
Currently held by Callister, Theda 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 KF7TDC's current licensee, walking backwards.
- Callister, Theda DIDgranted 2009-03-05cancelled 2009-05-15
Successor callsigns
Callsigns held now by people who previously held KF7TDC.
No current licensee on record previously held this callsign.