Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0BJ callsign genealogy
Currently held by MUSKRAT, JAMES 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 KD0BJ's current licensee, walking backwards.
- Jones, William MKSgranted 2009-02-02cancelled 2017-06-06
Successor callsigns
Callsigns held now by people who previously held KD0BJ.
- Jones, William MKSgranted 2017-11-17
All historical holders
Every license row we've seen with the callsign KD0BJ, oldest first.
- MUSKRAT, JAMES C MO1987-10-27 → cancelled 1999-10-28
- Jones, William M KS2017-06-06 → cancelled 2017-11-17