Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0CMP callsign genealogy
Currently held by Heidner, Vernon D
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 K0CMP's current licensee, walking backwards.
- Heidner, Vernon DMNgranted 2025-11-21cancelled 2025-12-23
Successor callsigns
Callsigns held now by people who previously held K0CMP.
No current licensee on record previously held this callsign.