Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6JMO callsign genealogy
Currently held by WATERS, KENNETH R
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 K6JMO's current licensee, walking backwards.
- Kaufman, DonaldCAgranted 2011-08-10cancelled 2011-12-31
Successor callsigns
Callsigns held now by people who previously held K6JMO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6JMO, oldest first.
- WATERS, KENNETH R CA1995-11-06 → cancelled 2007-11-07
- Kaufman, Donald CA2022-01-19 active