Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WX3H callsign genealogy
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 WX3H's current licensee, walking backwards.
- Petro, Nicholas MFLgranted 2004-06-30cancelled 2007-01-04
- KA3YFVno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held WX3H.
- MURRAY, MARK AVAgranted 1999-06-10cancelled 2006-09-12
All historical holders
Every license row we've seen with the callsign WX3H, oldest first.
- PETRO, NICHOLAS M NC2017-01-10 active
- —— → cancelled 1999-06-10