Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DDF callsign genealogy
Currently held by DORTCH, JOHN M
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 W4DDF's current licensee, walking backwards.
- Flowers, Leonard NFLgranted 2024-06-01cancelled 2024-06-22
Successor callsigns
Callsigns held now by people who previously held W4DDF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4DDF, oldest first.
- DORTCH, JOHN M TN2004-12-07 → cancelled 2016-08-13
- Flowers, Leonard N FL2024-06-22 active