Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8BAM callsign genealogy
Currently held by machamer 690, brett 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 W8BAM's current licensee, walking backwards.
- Machamer, Brett ANYgranted 2021-03-22cancelled 2021-04-09
Successor callsigns
Callsigns held now by people who previously held W8BAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8BAM, oldest first.
- MATSON, THOMAS R OH2008-09-05 → cancelled 2020-10-06
- machamer 690, brett A NY2021-04-09 active