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

AC9PY callsign genealogy

Currently held by Mellenthin, Timothy M

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 AC9PY's current licensee, walking backwards.

  1. KB9DEMcancelled· E
    Mellenthin, Timothy MWIgranted 2016-06-01cancelled 2017-03-29
  2. KB9ZKNcancelled· T
    Mellenthin, Timothy MWIgranted 2011-02-17cancelled 2016-06-01

Successor callsigns

Callsigns held now by people who previously held AC9PY.

  1. WN6KHGactive· E
    Mellenthin, Timothy MWIgranted 2017-05-02
← Back to AC9PY License history →