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

W7ARX callsign genealogy

Currently held by Koumantaros, Cindy

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 W7ARX's current licensee, walking backwards.

  1. KD2GRRcancelled· T
    Koumantaros, CindyAZgranted 2024-04-03cancelled 2024-04-20

Successor callsigns

Callsigns held now by people who previously held W7ARX.

  1. W0KRScancelled
    Amateur Radio XperimentersTXgranted 2019-03-26cancelled 2019-04-23
  2. N7RSTcancelled· E
    Hays, Christopher BTXgranted 2014-11-25cancelled 2015-05-29

All historical holders

Every license row we've seen with the callsign W7ARX, oldest first.

  • Hays, Christopher B TX
    2014-08-29 → cancelled 2014-11-25
  • Amateur Radio Xperimenters TX
    2019-01-01 → cancelled 2019-03-26
  • Koumantaros, Cindy AZ
    2024-04-20 active
← Back to W7ARX License history →