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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KI9U callsign genealogy

Currently held by WOOLSEY, TIMOTHY W

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 KI9U's current licensee, walking backwards.

  1. KD9JYAcancelled
    AMATEUR RADIO ASSOCIATION OF NEWTON COUNTYINgranted 2018-01-03cancelled 2020-04-04

Successor callsigns

Callsigns held now by people who previously held KI9U.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KI9U, oldest first.

  • WOOLSEY, TIMOTHY W TX
    2007-12-11 → cancelled 2020-01-16
  • AMATEUR RADIO ASSOCIATION OF NEWTON COUNTY IN
    2020-04-04 active
← Back to KI9U License history →