Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0RII callsign genealogy
Currently held by BLACK, CHARLES A
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 K0RII's current licensee, walking backwards.
- SHIH, COURTNEY MCAgranted 2006-05-18cancelled 2014-02-11
Successor callsigns
Callsigns held now by people who previously held K0RII.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0RII, oldest first.
- BLACK, CHARLES A IA1993-09-07 → cancelled 2005-09-08
- SHIH, COURTNEY M CA2025-09-27 active