Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0DRF callsign genealogy
Currently held by Frey, Donald R
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 K0DRF's current licensee, walking backwards.
- Frey, Donald RMNgranted 2004-09-27cancelled 2008-10-10
Successor callsigns
Callsigns held now by people who previously held K0DRF.
No current licensee on record previously held this callsign.