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

W4CFS callsign genealogy

Currently held by Sutphin, Carl F

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 W4CFS's current licensee, walking backwards.

  1. AD4CScancelled· E
    Sutphin, Carl FFLgranted 2009-02-18cancelled 2017-05-13
  2. KF2QScancelled· E
    Sutphin, Carl FFLgranted 2003-06-09cancelled 2009-02-18
  3. N2KRR
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held W4CFS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W4CFS, oldest first.

  • THROOP SR, JAMES C FL
    1994-09-07 → cancelled 2000-02-02
  • Throop Sr, David P TX
    2003-06-27 → cancelled 2015-06-30
  • Sutphin, Carl F FL
    2017-05-13 active
← Back to W4CFS License history →