Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6KH callsign genealogy
Currently held by MONAHAN JR, WILLARD 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 K6KH's current licensee, walking backwards.
- GRIMM, CRAIG SCAgranted 2023-02-14cancelled 2026-03-24
Successor callsigns
Callsigns held now by people who previously held K6KH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6KH, oldest first.
- MONAHAN JR, WILLARD A CA2013-12-10 → cancelled 2026-03-06
- GRIMM, CRAIG S CA2026-03-24 active