Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9SFH callsign genealogy
Currently held by JACKSON, JEFFREY D
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 KC9SFH's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC9SFH.
- JACKSON, JEFFREY DILgranted 2011-01-07cancelled 2019-02-09