Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8RTR callsign genealogy
Currently held by SCHERBAUER, MIKE
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 W8RTR's current licensee, walking backwards.
- Parkman, BrentALgranted 2020-12-09cancelled 2020-12-29
Successor callsigns
Callsigns held now by people who previously held W8RTR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8RTR, oldest first.
- SCHERBAUER, MIKE OH2001-08-28 → cancelled 2013-08-29
- Parkman, Brent AL2020-12-29 active