Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4DWR callsign genealogy
Currently held by FRITSCH, TIMOTHY 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 KD4DWR's current licensee, walking backwards.
- FRITSCH, TIMOTHY RVAgranted 2026-07-07cancelled 2026-07-25
Successor callsigns
Callsigns held now by people who previously held KD4DWR.
- FRITSCH, TIMOTHY RVAgranted 2001-07-12cancelled 2013-08-21
All historical holders
Every license row we've seen with the callsign KD4DWR, oldest first.
- FRITSCH, TIMOTHY R VA1991-08-20 → cancelled 2001-07-12
- FRITSCH, TIMOTHY R VA2026-07-25 active