Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2BST callsign genealogy
Currently held by Unwin, Erik T
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 K2BST's current licensee, walking backwards.
- Unwin, Erik TCAgranted 2019-05-30cancelled 2019-06-25
Successor callsigns
Callsigns held now by people who previously held K2BST.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2BST, oldest first.
- JEFTS, ROBERT F NY2005-04-01 → cancelled 2017-06-29
- Unwin, Erik T CA2019-06-25 active