Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1GRX callsign genealogy
Currently held by Stillman, William 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 K1GRX's current licensee, walking backwards.
- Stillman, William PVAgranted 2001-02-28cancelled 2001-03-27
Successor callsigns
Callsigns held now by people who previously held K1GRX.
No current licensee on record previously held this callsign.