Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9STO callsign genealogy
Currently held by Stohr, Paul 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 W9STO's current licensee, walking backwards.
- Stohr, Paul RFLgranted 2015-02-19cancelled 2017-10-03
Successor callsigns
Callsigns held now by people who previously held W9STO.
No current licensee on record previously held this callsign.