Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7MCH callsign genealogy
Currently held by Herrmann, Mark C
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 K7MCH's current licensee, walking backwards.
- Herrmann, Mark CAZgranted 2001-09-14cancelled 2008-07-08
Successor callsigns
Callsigns held now by people who previously held K7MCH.
No current licensee on record previously held this callsign.