Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6OSY callsign genealogy
Currently held by Eichelberger, Eric J
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 K6OSY's current licensee, walking backwards.
- Eichelberger, Eric JCAgranted 2012-03-22cancelled 2012-04-24
Successor callsigns
Callsigns held now by people who previously held K6OSY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6OSY, oldest first.
- MUECKE, BERNARD W AZ1994-03-22 → cancelled 2006-03-23
- Eichelberger, Eric J CA2022-04-14 active