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

AC2MK callsign genealogy

Currently held by GILLSON, TODD M

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 AC2MK's current licensee, walking backwards.

  1. K8MLBactive· T
    Barrett, Matthew LMIgranted 2022-04-15
  2. KE8NWBcancelled· T
    Barrett, Matthew LMIgranted 2020-02-05cancelled 2022-04-15

Successor callsigns

Callsigns held now by people who previously held AC2MK.

  1. W2MLactive· E
    Ito, YoshihiroCAgranted 2024-03-26
  2. K2CJPcancelled· E
    GILLSON, TODD MNYgranted 2019-07-09cancelled 2023-01-14

All historical holders

Every license row we've seen with the callsign AC2MK, oldest first.

  • Ito, Yoshihiro CA
    2014-01-21 → cancelled 2014-06-14
  • GILLSON, TODD M NY
    2017-06-02 → cancelled 2019-07-09
← Back to AC2MK License history →