Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD1OWA callsign genealogy
Currently held by Steinhagen, Marvin L
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 KD1OWA's current licensee, walking backwards.
- Steinhagen, Marvin LIAgranted 2010-01-28cancelled 2017-08-18
Successor callsigns
Callsigns held now by people who previously held KD1OWA.
No current licensee on record previously held this callsign.