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

W7BZ callsign genealogy

Currently held by Heffernan, Beth

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 W7BZ's current licensee, walking backwards.

  1. KK7KEZcancelled· E
    Heffernan, BethWAgranted 2023-02-01cancelled 2023-08-12

Successor callsigns

Callsigns held now by people who previously held W7BZ.

  1. AI5ELcancelled· E
    Van Tuyl, Mark HTXgranted 2016-07-01cancelled 2021-08-13

All historical holders

Every license row we've seen with the callsign W7BZ, oldest first.

  • STONE, KENNETH S ID
    2006-01-04 → cancelled 2014-06-10
  • Van Tuyl, Mark H TX
    2016-07-01 → cancelled 2021-07-24
  • Heffernan, Beth WA
    2023-08-12 active
← Back to W7BZ License history →