Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4WWF callsign genealogy
Currently held by Sigmund, Daniel R
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 W4WWF's current licensee, walking backwards.
- Sigmund, Daniel RTNgranted 2019-06-10cancelled 2019-07-06
Successor callsigns
Callsigns held now by people who previously held W4WWF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4WWF, oldest first.
- MASH, ROBERT D NC2011-07-30 → cancelled 2017-02-28
- Sigmund, Daniel R TN2019-07-06 active