Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6OSU callsign genealogy
Currently held by REIMER, DAVID F
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 W6OSU's current licensee, walking backwards.
- Moore, Erick SCAgranted 2019-03-25cancelled 2019-04-19
Successor callsigns
Callsigns held now by people who previously held W6OSU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6OSU, oldest first.
- REIMER, DAVID F TX2006-04-25 → cancelled 2018-04-26
- Moore, Erick S ID2019-04-19 active