Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4IDX callsign genealogy
Currently held by Walls Jr, Mack W
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 KW4IDX's current licensee, walking backwards.
- Walls Jr, Mack WFLgranted 2006-01-23cancelled 2006-08-01
Successor callsigns
Callsigns held now by people who previously held KW4IDX.
- Walls Jr, Mack WFLgranted 2026-07-25