Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC6ROC callsign genealogy
Currently held by Brigham, Robert H
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 KC6ROC's current licensee, walking backwards.
- Brigham, Robert HCAgranted 2004-08-12cancelled 2004-09-21
Successor callsigns
Callsigns held now by people who previously held KC6ROC.
- Brigham, Robert HCAgranted 2020-01-22
All historical holders
Every license row we've seen with the callsign KC6ROC, oldest first.
- SLAVENS, KAREN M CA1991-02-05 → cancelled 2003-02-06
- Brigham, Robert H CA2004-09-21 → cancelled 2010-03-12