Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4CAL callsign genealogy
Currently held by BUTTS JR, ROBERT V
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 WA4CAL's current licensee, walking backwards.
- Wampler Jr, Calvin HFLgranted 2025-04-08cancelled 2025-04-26
Successor callsigns
Callsigns held now by people who previously held WA4CAL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4CAL, oldest first.
- BUTTS JR, ROBERT V SC2008-04-04 → cancelled 2020-04-07
- Wampler Jr, Calvin H FL2025-04-26 active