Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF7SU callsign genealogy
Currently held by CRIPPEN, JAMES R
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 KF7SU's current licensee, walking backwards.
- SU, WEI HUAORgranted 2018-01-09cancelled 2018-01-27
Successor callsigns
Callsigns held now by people who previously held KF7SU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF7SU, oldest first.
- CRIPPEN, JAMES R WA1989-04-18 → cancelled 2001-04-19
- SU, WEI HUA OR2018-01-27 active