Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2SUB callsign genealogy
Currently held by USS Submarine Lionfish Radio Club
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 W2SUB's current licensee, walking backwards.
- Botero, Frederick WFLgranted 2021-07-12cancelled 2021-10-22
Successor callsigns
Callsigns held now by people who previously held W2SUB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W2SUB, oldest first.
- USS Submarine Lionfish Radio Club MA2001-04-13 → cancelled 2013-04-16
- Botero, Frederick W FL2021-10-22 active