Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3DKD callsign genealogy
Currently held by GRASBERGER, HOMER 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 N3DKD's current licensee, walking backwards.
- Klein, DouglasPAgranted 2023-01-26cancelled 2023-04-14
Successor callsigns
Callsigns held now by people who previously held N3DKD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3DKD, oldest first.
- GRASBERGER, HOMER C PA1988-03-29 → cancelled 2000-03-30
- Klein, Douglas PA2023-04-14 active