Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF9TC callsign genealogy
Currently held by Castro, Joseph P
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 KF9TC's current licensee, walking backwards.
- N9QMJno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KF9TC.
- Castro, Joseph PINgranted 2021-10-04