Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0MMC callsign genealogy
Currently held by RENKEN JR, ROBERT 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 N0MMC's current licensee, walking backwards.
- Cook, JeremyCOgranted 2022-02-01cancelled 2022-02-19
Successor callsigns
Callsigns held now by people who previously held N0MMC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0MMC, oldest first.
- RENKEN JR, ROBERT W MO1992-04-07 → cancelled 2004-04-08
- Cook, Jeremy CO2022-02-19 active