uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K6ZIN callsign genealogy

Currently held by GRIMSON, J KEITH

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 K6ZIN's current licensee, walking backwards.

  1. KA6ZINcancelled· T
    Franklin, Ronald LCAgranted 2014-03-04cancelled 2014-04-18
  2. KG6GLOcancelled· T
    Franklin, Ronald LCAgranted 2011-03-25cancelled 2014-03-04

Successor callsigns

Callsigns held now by people who previously held K6ZIN.

  1. KW6AAcancelled· A
    GRIMSON, J KEITHCAgranted 2006-01-10cancelled 2006-04-04

All historical holders

Every license row we've seen with the callsign K6ZIN, oldest first.

  • GRIMSON, J KEITH CA
    2002-03-29 → cancelled 2006-01-10
  • Franklin, Ronald L CA
    2014-04-18 → cancelled 2026-04-21
← Back to K6ZIN License history →