Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6EFM callsign genealogy
Currently held by PESELY, JOHN 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 W6EFM's current licensee, walking backwards.
- Rikkers-fischer, Jayden SCAgranted 2024-09-04cancelled 2024-10-01
Successor callsigns
Callsigns held now by people who previously held W6EFM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6EFM, oldest first.
- PESELY, JOHN W CA1997-12-16 → cancelled 2009-12-17
- Rikkers-Fischer, Jayden S CA2024-10-01 active