Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4K callsign genealogy
Currently held by WILLIAMS JR, DONALD L
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 WA4K's current licensee, walking backwards.
- JOHNSON, RONALD AFLgranted 1994-09-15cancelled 2000-09-06
Successor callsigns
Callsigns held now by people who previously held WA4K.
- WILLIAMS JR, DONALD LVAgranted 2018-05-29
All historical holders
Every license row we've seen with the callsign WA4K, oldest first.
- JOHNSON, RONALD A FL2020-08-24 active
- WILLIAMS JR, DONALD L— → cancelled 1998-08-17