Confidence: Medium · Source: FCC ULS · As of 2026-09-09
WD4DOC callsign genealogy
Currently held by Lopez, Daniel
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 WD4DOC's current licensee, walking backwards.
- Lopez, DanielFLgranted 2022-04-06cancelled 2022-04-26
Successor callsigns
Callsigns held now by people who previously held WD4DOC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD4DOC, oldest first.
- COLE JR, EDWARD R SC2003-04-01 → cancelled 2015-04-02
- Lopez, Daniel FL2022-04-26 active