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

W9IU callsign genealogy

Currently held by DALY SR, JOHN L

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 W9IU's current licensee, walking backwards.

  1. W4USFactive
    Amateur Radio Club at USFFLgranted 2024-05-21
  2. WB4USFcancelled
    Amateur Radio Club at USFFLgranted 2022-05-06cancelled 2024-05-21
  3. KO4ZRQcancelled
    Amateur Radio Club At USFFLgranted 2022-04-14cancelled 2022-05-06

Successor callsigns

Callsigns held now by people who previously held W9IU.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W9IU, oldest first.

  • COULTER, DON A IN
    2018-04-11 → cancelled 2019-07-28
  • DALY SR, JOHN L FL
    2021-08-17 active
← Back to W9IU License history →