Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0DFH callsign genealogy
Currently held by COLBURN, MICHAEL J
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 K0DFH's current licensee, walking backwards.
- COLBURN, MICHAEL JSDgranted 1997-02-26cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held K0DFH.
No current licensee on record previously held this callsign.