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

W4PFO callsign genealogy

Currently held by MOORE SR, WILLIAM 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 W4PFO's current licensee, walking backwards.

  1. WD4HAMcancelled
    Amateur Radio Interest DichotomyGAgranted 2023-08-04cancelled 2024-02-21
  2. KO4VDUcancelled
    Amateur Radio Interest DichotomyGAgranted 2021-12-03cancelled 2023-08-04

Successor callsigns

Callsigns held now by people who previously held W4PFO.

  1. W4TZAcancelled· G
    MOORE SR, WILLIAM JNCgranted 2016-06-03cancelled 2017-08-25

All historical holders

Every license row we've seen with the callsign W4PFO, oldest first.

  • PROFFITT, OLONZO C VA
    1995-08-09 → cancelled 2007-08-10
  • MOORE SR, WILLIAM J NC
    2015-12-22 → cancelled 2016-06-03
← Back to W4PFO License history →