Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6UDW callsign genealogy
Currently held by RIDDLEBARGER, CLIFF G
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 K6UDW's current licensee, walking backwards.
- RIDDLEBARGER, CLIFF GCAgranted 1998-12-14cancelled 2006-06-27
Successor callsigns
Callsigns held now by people who previously held K6UDW.
No current licensee on record previously held this callsign.