Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WO7D callsign genealogy
Currently held by Alcantara Jr, Candido
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 WO7D's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WO7D.
- SMITH, MAXWELL GAZgranted 1996-06-18cancelled 2000-09-05
All historical holders
Every license row we've seen with the callsign WO7D, oldest first.
- Alcantara Jr, Candido ID2000-10-11 → cancelled 2012-10-12
- Eres, Robert S AZ2022-08-19 active