Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6BOS callsign genealogy
Currently held by WILLIAMS, TRAVIS A
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 W6BOS's current licensee, walking backwards.
- Bos, MartinusCAgranted 2024-08-06cancelled 2024-08-30
Successor callsigns
Callsigns held now by people who previously held W6BOS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6BOS, oldest first.
- WILLIAMS, TRAVIS A CA2010-01-09 → cancelled 2022-02-23
- Bos, Martinus CA2024-08-30 active