Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7TYF callsign genealogy
Currently held by FREDRICKSON, THOMAS Y
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 K7TYF's current licensee, walking backwards.
- FREDRICKSON, THOMAS YUTgranted 2010-07-06cancelled 2010-12-17
Successor callsigns
Callsigns held now by people who previously held K7TYF.
No current licensee on record previously held this callsign.