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

W6MS callsign genealogy

Currently held by SUNDEEN, ADRIAN G

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 W6MS's current licensee, walking backwards.

  1. AF6LPcancelled· E
    Spaulding, Mark RCAgranted 2018-05-15cancelled 2023-05-13
  2. KI6RYIcancelled· E
    Spaulding, Mark RCAgranted 2008-07-14cancelled 2008-08-27

Successor callsigns

Callsigns held now by people who previously held W6MS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W6MS, oldest first.

  • SUNDEEN, ADRIAN G CA
    1998-04-09 → cancelled 1994-04-05
  • SMITH, ERNEST M VA
    2011-02-08 → cancelled 2023-04-25
  • Spaulding, Mark R CA
    2023-05-13 active