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

K9IHU callsign genealogy

Currently held by SAGE, WILLIAM A

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 K9IHU's current licensee, walking backwards.

  1. KD9SDOcancelled· T
    Stephens, Jeremy AINgranted 2021-03-22cancelled 2021-07-17

Successor callsigns

Callsigns held now by people who previously held K9IHU.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K9IHU, oldest first.

  • SAGE, WILLIAM A IN
    2007-08-02 → cancelled 2019-07-31
  • Stephens, Jeremy A IN
    2021-07-17 active