Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WT9H callsign genealogy
Currently held by Snow, Max
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 WT9H's current licensee, walking backwards.
- Snow, MaxARgranted 2022-08-02cancelled 2022-11-18
Successor callsigns
Callsigns held now by people who previously held WT9H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WT9H, oldest first.
- HEIFNER, RONALD J IL2010-04-27 → cancelled 2022-06-28
- Snow, Max AR2022-11-18 active