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

KA1AD callsign genealogy

Currently held by DROLLETT JR, ALBERT A

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 KA1AD's current licensee, walking backwards.

  1. KD2NYZcancelled· E
    Osodroop, PrasansakNYgranted 2017-08-07cancelled 2018-07-13

Successor callsigns

Callsigns held now by people who previously held KA1AD.

  1. W1SMactive· E
    DROLLETT JR, ALBERT AMAgranted 2020-08-25

All historical holders

Every license row we've seen with the callsign KA1AD, oldest first.

  • DROLLETT JR, ALBERT A MA
    1997-09-17 → cancelled 2000-10-24
  • Osodroop, Prasansak NY
    2018-07-13 active