uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

K6MB callsign genealogy

Currently held by HUGHES, JOHN J

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 K6MB's current licensee, walking backwards.

  1. AF6GKcancelled· E
    Klemens, Gary QCAgranted 2012-02-04cancelled 2012-03-10
  2. KJ6SYMcancelled· E
    Klemens, Gary QCAgranted 2011-12-05cancelled 2012-02-04

Successor callsigns

Callsigns held now by people who previously held K6MB.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K6MB, oldest first.

  • HUGHES, JOHN J CA
    2006-09-23 → cancelled 2010-02-17
  • Klemens, Gary Q CA
    2021-12-18 active