Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0AAJ callsign genealogy
Currently held by SHEPPARD, DAVID A
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 KD0AAJ's current licensee, walking backwards.
- SHEPPARD, DAVID ANDgranted 2007-01-16cancelled 2007-03-21
Successor callsigns
Callsigns held now by people who previously held KD0AAJ.
- SHEPPARD, DAVID ANDgranted 2018-04-27