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

WT4F callsign genealogy

Currently held by GILMAN, WILLIAM O

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 WT4F's current licensee, walking backwards.

  1. WR4PKZcancelled
    FOOTHILLS AMATEUR RADIO CLUBSCgranted 1999-01-13cancelled 2001-09-15
  2. KF4FOFcancelled
    RIGDON, HERMAN Mcancelled 1999-01-13

Successor callsigns

Callsigns held now by people who previously held WT4F.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WT4F, oldest first.

  • GILMAN, WILLIAM O SC
    1997-07-15 → cancelled 1999-05-12
  • FOOTHILLS AMATEUR RADIO CLUB SC
    2021-09-08 active
← Back to WT4F License history →