Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2OST callsign genealogy
Currently held by Ost III, John
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 W2OST's current licensee, walking backwards.
- Ost III, JohnNYgranted 2013-12-31cancelled 2014-01-22
Successor callsigns
Callsigns held now by people who previously held W2OST.
No current licensee on record previously held this callsign.