Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3KBO callsign genealogy
Currently held by Ratcliffe, David E
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 W3KBO's current licensee, walking backwards.
- Ratcliffe, David EPAgranted 2015-02-06cancelled 2015-02-27
Successor callsigns
Callsigns held now by people who previously held W3KBO.
No current licensee on record previously held this callsign.