Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0O callsign genealogy
Currently held by Whitfield Jr, Robert C
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 KD0O's current licensee, walking backwards.
- ALLEN, HEATHER WMOgranted 2022-09-23cancelled 2022-12-31
Successor callsigns
Callsigns held now by people who previously held KD0O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD0O, oldest first.
- MC BURNEY, WILLIAM L MO1995-02-22 → cancelled 2007-02-23
- Whitfield Jr, Robert C KS2010-10-05 → cancelled 2022-10-06
- ALLEN, HEATHER W MO2022-12-31 active