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

W4FP callsign genealogy

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 W4FP's current licensee, walking backwards.

  1. AC5UEcancelled· E
    Crone, George EMSgranted 1996-07-03cancelled 2000-05-12
  2. KM5WMactive· E
    Mason, Michael WLAgranted 2020-01-04
  3. KG5YZMcancelled· E
    Mason, Michael WLAgranted 2018-03-29cancelled 2020-01-04

Successor callsigns

Callsigns held now by people who previously held W4FP.

  1. W0PNexpired· E
    Dunbar JR, Ron RNCgranted 2008-06-19cancelled 2020-04-23

All historical holders

Every license row we've seen with the callsign W4FP, oldest first.

  • Crone, George E MS
    2020-03-17 active
  • —
    — → cancelled 1998-04-22
← Back to W4FP License history →