Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5REG callsign genealogy
Currently held by ETTELDORF, FREDERICK C
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 W5REG's current licensee, walking backwards.
- GREENWELL, RONALD ENMgranted 1995-06-28cancelled 2005-04-08
- N9FGIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W5REG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5REG, oldest first.
- ETTELDORF, FREDERICK C AR1993-01-26 → cancelled 2005-01-27
- GREENWELL, RONALD E NM2015-02-13 active