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

WB1E callsign genealogy

Currently held by MAC KINNON, MARK A

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 WB1E's current licensee, walking backwards.

  1. N5DMCactive· G
    GRIFFETH JR, JAMES CTXgranted 2021-07-24
  2. KE5WAPcancelled· G
    GRIFFETH JR, JAMES CTXgranted 2018-06-12cancelled 2021-07-24

Successor callsigns

Callsigns held now by people who previously held WB1E.

  1. KA1CVSactive· E
    MACKINNON, MARK AMEgranted 2017-06-10

All historical holders

Every license row we've seen with the callsign WB1E, oldest first.

  • MAC KINNON, MARK A ME
    2012-06-23 → cancelled 2017-06-10
  • CHRISTENSEN, DOUG M TX
    2019-07-02 active