Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0DHZ callsign genealogy
Currently held by Henninger, Dale R
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 W0DHZ's current licensee, walking backwards.
- Henninger, Dale RMNgranted 2017-09-11cancelled 2020-07-17
Successor callsigns
Callsigns held now by people who previously held W0DHZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0DHZ, oldest first.
- GREGORY, WALTER D MO1997-10-06 → cancelled 2009-10-07
- Henninger, Dale R MN2020-07-17 active