Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7KDW callsign genealogy
Currently held by ERNST, CLARENCE T
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 KB7KDW's current licensee, walking backwards.
- MULLINS, JASON SIDgranted 2017-12-06cancelled 2018-01-17
Successor callsigns
Callsigns held now by people who previously held KB7KDW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7KDW, oldest first.
- ERNST, CLARENCE T UT1990-03-27 → cancelled 2002-03-28
- Mullins, Jason S ID2018-01-17 active