Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4DW callsign genealogy
Currently held by Wollaeger, David P
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 AB4DW's current licensee, walking backwards.
- Wollaeger, David PNCgranted 2016-04-19cancelled 2016-05-20
Successor callsigns
Callsigns held now by people who previously held AB4DW.
- Wollaeger, David PNCgranted 2026-06-04
All historical holders
Every license row we've seen with the callsign AB4DW, oldest first.
- HOWELL, DOUGLAS T NC1994-09-09 → cancelled 2001-04-19
- Wollaeger, David P NC2016-05-20 → cancelled 2016-07-29