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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KW1W callsign genealogy

Currently held by Keppler, Kevin J

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 KW1W's current licensee, walking backwards.

  1. AE1EIcancelled· E
    Keppler, Kevin JMAgranted 2018-12-21cancelled 2023-03-31
  2. KC1JYCcancelled· E
    Keppler, Kevin JMAgranted 2018-06-22cancelled 2018-12-21

Successor callsigns

Callsigns held now by people who previously held KW1W.

  1. AL7Jactive· E
    MAYRAND, JASON PAKgranted 2021-02-27

All historical holders

Every license row we've seen with the callsign KW1W, oldest first.

  • MAYRAND, JASON P AK
    2012-12-15 → cancelled 2021-02-27
  • Keppler, Kevin J MA
    2023-03-31 active
← Back to KW1W License history →