Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8SLR callsign genealogy
Currently held by RICHARDSON, SAMUEL 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 W8SLR's current licensee, walking backwards.
- Rios, Seth LTXgranted 2026-02-11cancelled 2026-03-03
Successor callsigns
Callsigns held now by people who previously held W8SLR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8SLR, oldest first.
- RICHARDSON, SAMUEL L MI2011-10-12 → cancelled 2022-04-22
- Rios, Seth L TX2026-03-03 active