Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4CZD callsign genealogy
Currently held by CUMMINS, CHRISTOPHER
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 KM4CZD's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KM4CZD.
- CUMMINS, CHRISTOPHER CNVgranted 2026-07-25