Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4OJD callsign genealogy
Currently held by LEE, MACK S
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 W4OJD's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4OJD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4OJD, oldest first.
- LEE, MACK S FL2005-01-04 → cancelled 2017-01-05
- KING, RONALD D TN2023-02-28 active