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

W0XX callsign genealogy

Currently held by Hays, Christopher B

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 W0XX's current licensee, walking backwards.

  1. W0BKRactive· G
    Baker, DustinSDgranted 2026-08-01
  2. KF0YWVcancelled· G
    Baker, DustinSDgranted 2026-06-18cancelled 2026-08-01

Successor callsigns

Callsigns held now by people who previously held W0XX.

  1. W0AKRcancelled· E
    Hays, Christopher BTXgranted 2020-03-14cancelled 2020-05-29
  2. N9CMcancelled· E
    Hays, Christopher BTXgranted 2019-09-24cancelled 2019-12-06
  3. W0BKRcancelled· E
    Hays, Christopher BTXgranted 2019-02-16cancelled 2019-04-02
  4. N9CMcancelled· E
    Hays, Christopher BTXgranted 2018-11-14cancelled 2019-01-01

All historical holders

Every license row we've seen with the callsign W0XX, oldest first.

  • WAHLERT, HOWARD M IA
    2005-08-24 → cancelled 2017-11-21
  • Hays, Christopher B TX
    2017-12-09 → cancelled 2018-11-14
  • Hays, Christopher B TX
    2019-01-01 → cancelled 2019-02-16
  • Hays, Christopher B TX
    2019-04-02 → cancelled 2019-09-24
  • Hays, Christopher B TX
    2019-12-06 → cancelled 2020-03-14
  • Amateur Radio Xperimenters TX
    2020-12-18 active
← Back to W0XX License history →