Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9ATH callsign genealogy
Currently held by Perkins, Robert W
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 W9ATH's current licensee, walking backwards.
- Sharp, JohnINgranted 2018-06-14cancelled 2018-08-14
Successor callsigns
Callsigns held now by people who previously held W9ATH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9ATH, oldest first.
- Perkins, Robert W IL2004-04-19 → cancelled 2016-07-16
- Sharp, John IN2018-08-14 active