Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD1AB callsign genealogy
Currently held by CHO, YO-YOON
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 KD1AB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD1AB.
- CUSARE, FRANK JCTgranted 2002-03-05cancelled 2014-06-03