Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7MDH callsign genealogy
Currently held by John, Richard 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 K7MDH's current licensee, walking backwards.
- John, Richard CCAgranted 2009-07-08cancelled 2009-11-14
Successor callsigns
Callsigns held now by people who previously held K7MDH.
No current licensee on record previously held this callsign.