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

AB9PZ callsign genealogy

Currently held by Knapp, Bradley J

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 AB9PZ's current licensee, walking backwards.

  1. N6KYSexpired· T
    Boyer, Kris LCAgranted 2011-03-08cancelled 2023-03-09
  2. KJ6MSDcancelled· T
    Herstein, Kris LCAgranted 2011-02-17cancelled 2011-03-08

Successor callsigns

Callsigns held now by people who previously held AB9PZ.

  1. K9MHZactive· E
    Knapp, Bradley JINgranted 2018-01-05
← Back to AB9PZ License history →