Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3X callsign genealogy
Currently held by Uptmor, DJ
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 KB3X's current licensee, walking backwards.
- Uptmor, DJCAgranted 2018-12-03cancelled 2020-04-07
Successor callsigns
Callsigns held now by people who previously held KB3X.
- HUDLER, SCOTT DPAgranted 2019-11-20
All historical holders
Every license row we've seen with the callsign KB3X, oldest first.
- HUDLER, SCOTT D OH1993-07-20 → cancelled 1999-11-23
- Felton, Drax R NC2012-05-31 → cancelled 2018-01-18
- Uptmor, DJ CA2020-04-07 active