Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4RQM callsign genealogy
Currently held by RIEWE, CHRISTOPHER A
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 KM4RQM's current licensee, walking backwards.
- RIEWE, CHRISTOPHER ANCgranted 2016-02-01cancelled 2016-02-29
Successor callsigns
Callsigns held now by people who previously held KM4RQM.
- RIEWE, CHRISTOPHER ANCgranted 2026-05-27