Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DLW callsign genealogy
Currently held by Warnberg, David 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 W4DLW's current licensee, walking backwards.
- Warnberg, David LFLgranted 2023-04-07cancelled 2024-07-12
Successor callsigns
Callsigns held now by people who previously held W4DLW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4DLW, oldest first.
- WRAY, DANIEL L VA2012-04-25 → cancelled 2024-04-23
- Warnberg, David L FL2024-07-12 active
- WILSON, DAVID L— → cancelled 1999-01-15