Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6IU callsign genealogy
Currently held by GROSS, RONALD A
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 W6IU's current licensee, walking backwards.
- GROSS, RONALD ACAgranted 1998-11-04cancelled 2000-03-24
Successor callsigns
Callsigns held now by people who previously held W6IU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6IU, oldest first.
- MC LEOD, RODERICK J CA1987-12-01 → cancelled 1999-12-02
- GROSS, RONALD A CA2020-03-28 active