Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0UBR callsign genealogy
Currently held by Yarrow, James P
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 KD0UBR'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 KD0UBR.
- Yarrow, James PMOgranted 2013-02-15cancelled 2015-10-09