Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9WF callsign genealogy
Currently held by SWANSON, MARK P
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 K9WF's current licensee, walking backwards.
- SWANSON, MARK PILgranted 1995-05-03cancelled 2000-07-04
Successor callsigns
Callsigns held now by people who previously held K9WF.
No current licensee on record previously held this callsign.