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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W6ZF callsign genealogy

Currently held by Froess, Raymond 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 W6ZF's current licensee, walking backwards.

  1. KI6PNOcancelled· E
    Froess, Raymond JCAgranted 2008-04-07cancelled 2009-02-28

Successor callsigns

Callsigns held now by people who previously held W6ZF.

  1. W1KQactive· E
    MARTIN JR, JAMES JMAgranted 2016-11-15
  2. WK1Vcancelled· E
    MARTIN JR, JAMES JMAgranted 2002-06-15cancelled 2004-06-22

All historical holders

Every license row we've seen with the callsign W6ZF, oldest first.

  • MARTIN, RONALD G CA
    1993-11-30 → cancelled 1999-03-16
  • MARTIN JR, JAMES J MA
    2001-04-03 → cancelled 2002-06-15
  • MARTIN JR, JAMES J MA
    2004-06-22 → cancelled 2007-02-09
  • Froess, Raymond J CA
    2018-12-27 active
← Back to W6ZF License history →