Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1XXX callsign genealogy
Currently held by GRASS, DAN D
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 K1XXX's current licensee, walking backwards.
- DEUEL, JEFFREY MCAgranted 2007-02-08cancelled 2013-03-12
Successor callsigns
Callsigns held now by people who previously held K1XXX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1XXX, oldest first.
- GRASS, DAN D ME1999-07-27 → cancelled 2011-07-28
- DEUEL, JEFFREY M CA2024-12-10 active