Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WC6M callsign genealogy
Currently held by RONNING, ARLEIGH M
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 WC6M's current licensee, walking backwards.
- CRISMAN, RYANFLgranted 2024-10-08cancelled 2025-05-28
Successor callsigns
Callsigns held now by people who previously held WC6M.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WC6M, oldest first.
- KLEBS, HARRY F CA1987-09-29 → cancelled 1999-09-30
- RONNING, ARLEIGH M CA2013-01-31 → cancelled 2025-04-30
- CRISMAN, RYAN FL2025-05-28 active