Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WW4DJB callsign genealogy
Currently held by BUTTS, DONALD J
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 WW4DJB's current licensee, walking backwards.
- KD4SWXcancelledcancelled 1998-10-29
Successor callsigns
Callsigns held now by people who previously held WW4DJB.
- BUTTS, DONALD JSCgranted 2020-03-10