Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK7YYU callsign genealogy
Currently held by Roper, James J
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 KK7YYU's current licensee, walking backwards.
- Roper, James JIDgranted 2025-02-25cancelled 2026-03-27
Successor callsigns
Callsigns held now by people who previously held KK7YYU.
- Roper, James JIDgranted 2025-02-25cancelled 2026-03-27
All historical holders
Every license row we've seen with the callsign KK7YYU, oldest first.
- Roper, James J ID2025-02-05 → cancelled 2025-02-25
- Roper, James J ID2026-03-27 active