Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4DDO callsign genealogy
Currently held by Jackson, Stephen W
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 K4DDO's current licensee, walking backwards.
- Jackson, Stephen WGAgranted 2017-11-22cancelled 2018-03-20
Successor callsigns
Callsigns held now by people who previously held K4DDO.
No current licensee on record previously held this callsign.