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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

K7SLN callsign genealogy

Currently held by Niemann, Shawn 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 K7SLN's current licensee, walking backwards.

  1. KJ7WKGcancelled· T
    NIELSEN, SHERRIE LUTgranted 2021-03-29cancelled 2021-04-16

Successor callsigns

Callsigns held now by people who previously held K7SLN.

  1. W9SLNcancelled· E
    Niemann, Shawn LWIgranted 2017-06-17cancelled 2023-08-15

All historical holders

Every license row we've seen with the callsign K7SLN, oldest first.

  • Niemann, Shawn L WI
    2016-12-06 → cancelled 2017-06-17
  • Nielsen 855, Sherrie L UT
    2021-04-16 active
← Back to K7SLN License history →