Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KL7HBC callsign genealogy
Currently held by BUSCH, THOMAS A
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 KL7HBC's current licensee, walking backwards.
- Prestegard, Michael LAKgranted 2009-10-21cancelled 2017-01-21
Successor callsigns
Callsigns held now by people who previously held KL7HBC.
- BUSCH, THOMAS AAKgranted 2008-11-08cancelled 2020-12-10
All historical holders
Every license row we've seen with the callsign KL7HBC, oldest first.
- Prestegard, Michael L AK2017-01-21 active
- BUSCH, THOMAS A— → cancelled 1998-12-09