Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9RPL callsign genealogy
Currently held by Lergner, Robert
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 KB9RPL's current licensee, walking backwards.
- Lergner, RobertILgranted 2021-03-01cancelled 2022-01-08
Successor callsigns
Callsigns held now by people who previously held KB9RPL.
- Vieth, David LWIgranted 2023-09-12
All historical holders
Every license row we've seen with the callsign KB9RPL, oldest first.
- Vieth, David L WI1997-10-29 → cancelled 2003-11-04
- Lergner, Robert IL2022-01-08 active