Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6JKW callsign genealogy
Currently held by KATZ, JEFFREY G
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 K6JKW's current licensee, walking backwards.
- KATZ, JEFFREY GCAgranted 2003-02-07cancelled 2012-04-17
Successor callsigns
Callsigns held now by people who previously held K6JKW.
- KATZ, JEFFREY GMDgranted 2020-10-20cancelled 2022-03-19
All historical holders
Every license row we've seen with the callsign K6JKW, oldest first.
- BLACK, JAMES H CA1990-10-09 → cancelled 2002-10-10
- KATZ, JEFFREY G MD2012-04-17 → cancelled 2020-10-20