uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W5FYF callsign genealogy

Currently held by King, John T

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 W5FYF's current licensee, walking backwards.

  1. WS6FYFcancelled· G
    King, John TTXgranted 2002-04-19cancelled 2004-11-10
  2. KD5RUCcancelled· T
    King, John TTXgranted 2002-03-19cancelled 2002-04-19

Successor callsigns

Callsigns held now by people who previously held W5FYF.

  1. WN5Ractive· E
    KING, JOHN TTXgranted 2025-11-27
← Back to W5FYF License history →