Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3SL callsign genealogy
Currently held by Guma, Anthony C
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 W3SL's current licensee, walking backwards.
- Avera, Stewart LFLgranted 2023-12-19cancelled 2024-08-13
Successor callsigns
Callsigns held now by people who previously held W3SL.
- Guma, Anthony CMDgranted 2022-07-23cancelled 2023-10-03
All historical holders
Every license row we've seen with the callsign W3SL, oldest first.
- DELAWARE AMATEUR RADIO CLUB DE2006-08-15 → cancelled 2018-08-16
- Guma, Anthony C MD2018-09-05 → cancelled 2022-07-23
- Avera, Stewart L FL2024-08-13 active