Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8MHZ callsign genealogy
Currently held by Derby, Mark 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 K8MHZ's current licensee, walking backwards.
- DERBY, MARK AMIgranted 2004-06-01cancelled 2004-11-05
Successor callsigns
Callsigns held now by people who previously held K8MHZ.
No current licensee on record previously held this callsign.