Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3DT callsign genealogy
Currently held by Tyson, David W
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 KB3DT's current licensee, walking backwards.
- Tyson, David WPAgranted 2005-09-29cancelled 2008-04-15
Successor callsigns
Callsigns held now by people who previously held KB3DT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB3DT, oldest first.
- PATTERSON, JAMES A PA1990-02-13 → cancelled 2002-03-07
- Tyson, David W PA2018-03-13 active