Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7HAM callsign genealogy
Currently held by ROBERTS, DARIN L
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 KD7HAM's current licensee, walking backwards.
- Thornton, James DTXgranted 1999-11-23cancelled 2007-04-03
Successor callsigns
Callsigns held now by people who previously held KD7HAM.
- ROBERTS, DARIN LIDgranted 2010-01-21cancelled 2011-07-08
All historical holders
Every license row we've seen with the callsign KD7HAM, oldest first.
- ROBERTS, DARIN L ID1998-11-12 → cancelled 2000-04-11
- THORNTON, JAMES D TX2007-04-03 → cancelled 2019-04-04