uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W7FDP callsign genealogy

Currently held by ERHARDT JR, WARREN E

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 W7FDP's current licensee, walking backwards.

  1. KK7QZcancelled· A
    ERHARDT JR, WARREN EWAgranted 1998-12-02cancelled 2000-03-11
  2. KB7TAEcancelled· A
    ERHARDT JR, WARREN Ecancelled 1998-12-02

Successor callsigns

Callsigns held now by people who previously held W7FDP.

  1. N7QZactive· E
    ERHARDT JR, WARREN EWAgranted 2020-04-29
← Back to W7FDP License history →