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

W1UFL callsign genealogy

Currently held by Hatker, Lynn R

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 W1UFL's current licensee, walking backwards.

  1. KM4TBVcancelled· T
    Barnhart, Joseph TFLgranted 2016-04-08cancelled 2016-05-20

Successor callsigns

Callsigns held now by people who previously held W1UFL.

  1. W1APEactive· G
    Barnhart, Joseph TFLgranted 2018-06-19
  2. WX4NFLcancelled· E
    Hatker, Lynn RGAgranted 2013-03-19cancelled 2021-07-20

All historical holders

Every license row we've seen with the callsign W1UFL, oldest first.

  • Hatker, Lynn R FL
    2012-08-17 → cancelled 2013-03-19
  • Barnhart, Joseph T FL
    2016-05-20 → cancelled 2018-06-19
← Back to W1UFL License history →