Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DY callsign genealogy
Currently held by FROHARDT JR, ELMER P
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 W9DY's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W9DY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DY, oldest first.
- FROHARDT JR, ELMER P WI2015-01-16 → cancelled 2016-03-22
- O CONNOR, MICHAEL J IL2017-02-14 active