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

K6MHW callsign genealogy

Currently held by HARFORD, JACKSON

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 K6MHW's current licensee, walking backwards.

  1. K6DICcancelled· T
    WHITTEMORE, MARCCAgranted 2021-02-23cancelled 2021-07-09
  2. KN6NFVcancelled· T
    WHITTEMORE, MARCCAgranted 2021-02-05cancelled 2021-02-23

Successor callsigns

Callsigns held now by people who previously held K6MHW.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K6MHW, oldest first.

  • HARFORD, JACKSON CA
    2009-03-25 → cancelled 2021-05-20
  • WHITTEMORE, MARC CA
    2021-07-09 active