Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9CMC callsign genealogy
Currently held by WILLIAMS, MARION P
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 N9CMC's current licensee, walking backwards.
- Mehr, Jeffrey LILgranted 2018-05-10cancelled 2019-06-15
Successor callsigns
Callsigns held now by people who previously held N9CMC.
- Mehr, Jeffrey LILgranted 2022-05-03
All historical holders
Every license row we've seen with the callsign N9CMC, oldest first.
- WILLIAMS, MARION P IN1999-12-09 → cancelled 2012-03-07
- Mehr, Jeffrey L IL2019-06-15 → cancelled 2022-05-03