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

W8TTO callsign genealogy

Currently held by Taylor, Mark

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 W8TTO's current licensee, walking backwards.

  1. W6TTOcancelled· G
    Taylor, MarkOHgranted 2021-05-04cancelled 2021-06-02
  2. KE8QJKcancelled· G
    Taylor, MarkOHgranted 2021-01-12cancelled 2021-05-04

Successor callsigns

Callsigns held now by people who previously held W8TTO.

  1. N6MQactive· E
    Merriam 480, Robert LCAgranted 2019-02-27

All historical holders

Every license row we've seen with the callsign W8TTO, oldest first.

  • Taylor, Mark OH
    2021-06-02 active
  • MERRIAM, ROBERT L
    — → cancelled 1999-03-31
← Back to W8TTO License history →