Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WZ0H callsign genealogy
Currently held by JANNERETH, ROBERT 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 WZ0H's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WZ0H.
- RUNDALL, PATRICK JIAgranted 2020-06-01
All historical holders
Every license row we've seen with the callsign WZ0H, oldest first.
- RUNDALL, PATRICK J IA2000-05-31 → cancelled 2000-07-04
- JANNERETH, ROBERT A AZ2021-01-12 active