Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9OST callsign genealogy
Currently held by Lang, Jason
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 W9OST's current licensee, walking backwards.
- Lang, JasonWIgranted 2022-10-26cancelled 2022-11-15
Successor callsigns
Callsigns held now by people who previously held W9OST.
No current licensee on record previously held this callsign.