Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9PFD callsign genealogy
Currently held by GRINKER, RICHARD L
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 K9PFD's current licensee, walking backwards.
- GRINKER, RICHARD LILgranted 2015-12-19cancelled 2024-02-06
Successor callsigns
Callsigns held now by people who previously held K9PFD.
No current licensee on record previously held this callsign.