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

W1SM 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 W1SM's current licensee, walking backwards.

  1. KA1ADactive· E
    Osodroop, PrasansakNYgranted 2018-07-13
  2. KD2NYZcancelled· E
    Osodroop, PrasansakNYgranted 2017-08-07cancelled 2018-07-13

Successor callsigns

Callsigns held now by people who previously held W1SM.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W1SM, oldest first.

  • MYRBECK, EDWARD R MA
    1994-11-21 → cancelled 1995-07-17
  • DROLLETT JR, ALBERT A MA
    2020-08-25 active
← Back to W1SM License history →