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

N9MSM callsign genealogy

Currently held by Nielsen, Jason L

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 N9MSM's current licensee, walking backwards.

  1. K1JLNcancelled· G
    Nielsen, Jason LUTgranted 2014-09-12cancelled 2018-08-28

Successor callsigns

Callsigns held now by people who previously held N9MSM.

  1. K1JLNcancelled· G
    Nielsen, Jason LUTgranted 2014-09-12cancelled 2018-08-28
  2. KB7PJYcancelled· T
    NIELSEN, JASON LUTgranted 2004-06-08cancelled 2004-11-30

All historical holders

Every license row we've seen with the callsign N9MSM, oldest first.

  • Nielsen, Jason L MN
    2004-11-30 → cancelled 2014-09-12
  • NIELSEN, JASON L UT
    2018-08-28 active
← Back to N9MSM License history →