Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD6PF callsign genealogy
Currently held by Warner, Mark C
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 AD6PF's current licensee, walking backwards.
- WARNER, MARK CCAgranted 1997-05-09cancelled 2000-06-09
Successor callsigns
Callsigns held now by people who previously held AD6PF.
- Warner, Mark CCAgranted 2020-05-08