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

KD2UFO callsign genealogy

Currently held by May, 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 KD2UFO's current licensee, walking backwards.

  1. KD2QVOcancelled· G
    May, Robert SNYgranted 2018-11-02cancelled 2018-11-24

Successor callsigns

Callsigns held now by people who previously held KD2UFO.

  1. WD9UFOactive· T
    STAHR, BALLARIONILgranted 2026-03-20

All historical holders

Every license row we've seen with the callsign KD2UFO, oldest first.

  • STAHR, BALLARION IN
    2005-05-24 → cancelled 2006-05-16
  • May, Robert S NY
    2018-11-24 active
← Back to KD2UFO License history →