Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0NWT callsign genealogy
Currently held by Mehlhoff, David H
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 W0NWT's current licensee, walking backwards.
- Mehlhoff, David HSDgranted 2006-08-16cancelled 2008-12-20
Successor callsigns
Callsigns held now by people who previously held W0NWT.
- Mehlhoff, David HSDgranted 2019-03-05
All historical holders
Every license row we've seen with the callsign W0NWT, oldest first.
- AMENDOLA, ANTHONY J MO1994-09-19 → cancelled 2006-07-25
- Mehlhoff, David H SD2018-10-23 → cancelled 2019-03-05