Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC6JPR callsign genealogy
Currently held by Ratkiewicz, Jacob
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 KC6JPR's current licensee, walking backwards.
- Ratkiewicz, JacobCAgranted 2025-06-07cancelled 2025-07-01
Successor callsigns
Callsigns held now by people who previously held KC6JPR.
- BARRIGA, CEDRIC JNVgranted 2023-05-02
All historical holders
Every license row we've seen with the callsign KC6JPR, oldest first.
- BARRIGA, CEDRIC J CA2002-11-15 → cancelled 2002-11-19
- Ratkiewicz, Jacob CA2025-07-01 active