Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KD0YBS callsign genealogy
Currently held by Boulder D Star Group
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 KD0YBS'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 KD0YBS.
- KC0DSexpiredBoulder D Star GroupCOgranted 2013-11-26cancelled 2026-03-06