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

N6XTL callsign genealogy

Currently held by JOHNSTON, MICHAEL 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 N6XTL's current licensee, walking backwards.

  1. WB6MFTcancelled· T
    Torre, MarkCAgranted 2017-01-28cancelled 2022-04-15
  2. KM6HMOcancelled· T
    Torre, Mark FCAgranted 2017-01-10cancelled 2017-01-28

Successor callsigns

Callsigns held now by people who previously held N6XTL.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N6XTL, oldest first.

  • JOHNSTON, MICHAEL L CA
    1990-01-30 → cancelled 2002-03-07
  • Torre, Mark CA
    2022-04-15 active