Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7DAW callsign genealogy
Currently held by HERSCHLEIN, THOMAS M
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 KD7DAW's current licensee, walking backwards.
- HERSCHLEIN, THOMAS Mcancelled 1998-10-23
Successor callsigns
Callsigns held now by people who previously held KD7DAW.
- HERSCHLEIN, THOMAS MFLgranted 2021-03-16