Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9UFR callsign genealogy
Currently held by GROSHONG, MARK E
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 W9UFR's current licensee, walking backwards.
- Groshong, Mark EINgranted 2014-07-29cancelled 2014-08-19
Successor callsigns
Callsigns held now by people who previously held W9UFR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9UFR, oldest first.
- WEST, ROBERT W IL1999-04-30 → cancelled 2011-05-03
- GROSHONG, MARK E OR2024-08-29 active