Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7XF callsign genealogy
Currently held by Knutila, Charles 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 AD7XF's current licensee, walking backwards.
- Knutila, Charles WWAgranted 2008-10-28cancelled 2008-11-18
Successor callsigns
Callsigns held now by people who previously held AD7XF.
- Knutila, Charles WWAgranted 2008-12-09cancelled 2009-01-06