Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB2OST callsign genealogy
Currently held by Gross, Donald L
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 WB2OST's current licensee, walking backwards.
- Gross, Donald LFLgranted 2017-10-17cancelled 2018-05-30
Successor callsigns
Callsigns held now by people who previously held WB2OST.
No current licensee on record previously held this callsign.