Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8KSQ callsign genealogy
Currently held by BIRTWHISTLE, ROBERT G
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 W8KSQ's current licensee, walking backwards.
- Anteau, JustinINgranted 2020-12-18cancelled 2021-01-05
Successor callsigns
Callsigns held now by people who previously held W8KSQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8KSQ, oldest first.
- BIRTWHISTLE, ROBERT G MI2006-07-11 → cancelled 2018-09-25
- Anteau, Justin A IN2021-01-05 active