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

KD9DO callsign genealogy

Currently held by FISK, JAMES E

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 KD9DO's current licensee, walking backwards.

  1. W9NOOactive· T
    Fisk, ErickINgranted 2023-10-26
  2. K0UGRactive· T
    Pedersen, Sean PWAgranted 2025-06-14
  3. KG7UIJcancelled· T
    Pedersen, Sean PWAgranted 2015-06-10cancelled 2015-07-03

Successor callsigns

Callsigns held now by people who previously held KD9DO.

  1. W9NOOcancelled· A
    FISK, JAMES EINgranted 2009-04-07cancelled 2009-05-02

All historical holders

Every license row we've seen with the callsign KD9DO, oldest first.

  • FISK, JAMES E IN
    2000-12-09 → cancelled 2009-04-07
  • FISK, JAMES E IN
    2019-04-16 active
← Back to KD9DO License history →