Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO6AM callsign genealogy
Currently held by PHILLIPS, FREDERICK R
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 KO6AM's current licensee, walking backwards.
- Eschenbruecher, RobinCAgranted 2025-01-22cancelled 2026-02-18
Successor callsigns
Callsigns held now by people who previously held KO6AM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KO6AM, oldest first.
- PHILLIPS, FREDERICK R CA2006-01-12 → cancelled 2018-01-13
- Eschenbruecher, Robin CA2026-02-18 active