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

K1UU callsign genealogy

Currently held by CASWELL JR, FRED I

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 K1UU's current licensee, walking backwards.

  1. WM1Factive· E
    Haskell, Darius JMAgranted 2018-02-03
  2. AC1DLcancelled· E
    Haskell, Darius JMEgranted 2016-04-19cancelled 2018-02-03
  3. KC1FNLcancelled· E
    Haskell, Darius JMEgranted 2016-04-19cancelled 2017-10-17

Successor callsigns

Callsigns held now by people who previously held K1UU.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K1UU, oldest first.

  • Wyer, Harold E FL
    2005-09-20 → cancelled 2013-12-21
  • CASWELL JR, FRED I CT
    2025-11-26 active
← Back to K1UU License history →