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

AD6XO callsign genealogy

Currently held by Viterbi, Alexander 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 AD6XO's current licensee, walking backwards.

  1. KG6GPJcancelled· E
    Viterbi, Alexander JCAgranted 2001-04-25cancelled 2001-05-29
  2. KG6GPFcancelled· G
    Viterbi, Alexander JCAgranted 2001-04-25cancelled 2001-05-24
  3. KG6GFMcancelled· G
    Viterbi, Alexander JCAgranted 2001-04-25cancelled 2001-05-23

Successor callsigns

Callsigns held now by people who previously held AD6XO.

No current licensee on record previously held this callsign.

← Back to AD6XO License history →