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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W9UN callsign genealogy

Currently held by TOMS SR, ROBERT S

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 W9UN's current licensee, walking backwards.

  1. WA6Lactive· E
    Fredericks, Douglas MCAgranted 2018-10-10
  2. KI6FENcancelled· E
    Fredericks, Douglas MCAgranted 2017-01-13cancelled 2018-10-10

Successor callsigns

Callsigns held now by people who previously held W9UN.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W9UN, oldest first.

  • TOMS SR, ROBERT S IL
    1989-03-14 → cancelled 2001-03-15
  • ADAIR, KENNETH D FL
    2011-02-09 → cancelled 2014-09-01
  • Abdul Hamid, Hairil Anuar MD
    2026-07-09 active
← Back to W9UN License history →