Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WA4AU callsign genealogy
Currently held by WALLIS, CHARLES F
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 WA4AU's current licensee, walking backwards.
- Austin, LawrenceFLgranted 2020-02-15cancelled 2020-03-07
Successor callsigns
Callsigns held now by people who previously held WA4AU.
- WALLIS, CHARLES FALgranted 2021-04-28
All historical holders
Every license row we've seen with the callsign WA4AU, oldest first.
- WALLIS, CHARLES F AL2007-08-03 → cancelled 2011-07-01
- Austin, Lawrence W FL2020-03-07 active