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

W4TP callsign genealogy

Currently held by Billingsley Sr, John A

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 W4TP's current licensee, walking backwards.

  1. W4AFCactive
    Upper Pinellas Amateur Radio ClubFLgranted 2022-04-18
  2. KJ4ZWWcancelled
    Upper Pinellas Amateur Radio ClubFLgranted 2011-01-19cancelled 2012-07-14

Successor callsigns

Callsigns held now by people who previously held W4TP.

  1. W6UGcancelled· E
    PETERSEN, TIMOTHY JHIgranted 2006-12-05cancelled 2007-02-13

All historical holders

Every license row we've seen with the callsign W4TP, oldest first.

  • PETERSEN, TIMOTHY J HI
    1997-04-10 → cancelled 2006-12-05
  • Billingsley Sr, John A AL
    2018-11-14 active
← Back to W4TP License history →