Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8RWK callsign genealogy
Currently held by Koharik, Richard W
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 W8RWK's current licensee, walking backwards.
- Koharik, Richard WOHgranted 2013-07-25cancelled 2014-07-29
Successor callsigns
Callsigns held now by people who previously held W8RWK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8RWK, oldest first.
- GARVISON, ROBERT L MI1996-06-18 → cancelled 2008-06-19
- Koharik, Richard W OH2024-06-05 active