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

N9GUU callsign genealogy

Currently held by CANKAR, JOHN D

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 N9GUU's current licensee, walking backwards.

  1. KD9SFXcancelled
    Chain O Lakes Amateur Radio AssociationILgranted 2021-03-26cancelled 2021-12-28

Successor callsigns

Callsigns held now by people who previously held N9GUU.

  1. W9JMactive· E
    CANKAR, JOHN DILgranted 2019-12-03

All historical holders

Every license row we've seen with the callsign N9GUU, oldest first.

  • CANKAR, JOHN D IL
    2016-09-29 → cancelled 2019-12-03
  • Chain O Lakes Amateur Radio Association IL
    2021-12-28 active
← Back to N9GUU License history →