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

W4AOL callsign genealogy

Currently held by Lyon, Robert T

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 W4AOL's current licensee, walking backwards.

  1. KO4NWKcancelled· G
    Lyon, Robert TSCgranted 2021-03-10cancelled 2022-02-25

Successor callsigns

Callsigns held now by people who previously held W4AOL.

  1. W0ATHcancelled
    Oath Amateur Radio ClubVAgranted 2018-08-14cancelled 2019-07-27

All historical holders

Every license row we've seen with the callsign W4AOL, oldest first.

  • AOL Amateur Radio Club VA
    2012-10-16 → cancelled 2018-08-14
  • Lyon, Robert T SC
    2022-02-25 active
← Back to W4AOL License history →