Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KD0YCB callsign genealogy
Currently held by Mabe, Steven K
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 KD0YCB's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD0YCB.
- Mabe, Steven KCOgranted 2014-06-24cancelled 2026-06-25