Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB3D callsign genealogy
Currently held by Botelho, Christopher J
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 WB3D's current licensee, walking backwards.
- Botelho, Christopher JPAgranted 2025-08-12cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held WB3D.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB3D, oldest first.
- MANNING, MELVIN R VA2020-05-06 → cancelled 2023-09-13
- Botelho, Christopher J PA2025-12-09 active