Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD5KFZ callsign genealogy
Currently held by Johnson, 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 KD5KFZ's current licensee, walking backwards.
- JOHNSON, MARK ATXgranted 1996-01-22cancelled 2000-05-24
Successor callsigns
Callsigns held now by people who previously held KD5KFZ.
- Johnson, Mark ATXgranted 2002-06-05cancelled 2007-06-22