Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF8CMH callsign genealogy
Currently held by Zimmer, 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 KF8CMH's current licensee, walking backwards.
- Zimmer, Christopher AOHgranted 2024-04-30cancelled 2024-06-21
Successor callsigns
Callsigns held now by people who previously held KF8CMH.
No current licensee on record previously held this callsign.