Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG9PF callsign genealogy
Currently held by Thomas, Mark A
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 KG9PF's current licensee, walking backwards.
- THOMAS, MARK Acancelled 1999-02-10
Successor callsigns
Callsigns held now by people who previously held KG9PF.
- Thomas, Mark AILgranted 2022-11-16