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

KD8IOU callsign genealogy

Currently held by Rardin Sr, Brian C

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 KD8IOU's current licensee, walking backwards.

  1. AC8TFcancelled· E
    Rardin Sr, Brian COHgranted 2009-05-22cancelled 2016-05-10
  2. AG8Sactive· E
    WATKINS, JEREMY AARgranted 2017-04-14
  3. AB8FYcancelled· E
    WATKINS, JEREMY AAZgranted 2009-03-02cancelled 2017-04-14
  4. KC8JMXcancelled· G
    WATKINS, JEREMY AMIgranted 1999-03-11cancelled 2000-05-20

Successor callsigns

Callsigns held now by people who previously held KD8IOU.

  1. AG8Scancelled· E
    Rardin Sr, Brian COHgranted 2009-05-22cancelled 2015-03-26

All historical holders

Every license row we've seen with the callsign KD8IOU, oldest first.

  • Rardin Sr, Brian C OH
    2008-05-16 → cancelled 2009-05-22
  • Rardin Sr, Brian C OH
    2026-02-12 active
← Back to KD8IOU License history →