Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9ETA callsign genealogy
Currently held by Koss, Robert N
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 W9ETA's current licensee, walking backwards.
- KOSS, ROBERT NINgranted 1996-03-27cancelled 2001-03-20
Successor callsigns
Callsigns held now by people who previously held W9ETA.
No current licensee on record previously held this callsign.