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

W4OCO callsign genealogy

Currently held by HYMAN, Mike

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 W4OCO's current licensee, walking backwards.

  1. NC4MHactive· E
    HATCHER, MICHAEL RNCgranted 2024-10-04
  2. KI4MRHcancelled· E
    Hinsley, Randall HTNgranted 2019-08-06cancelled 2021-05-07
  3. KN4VTCcancelled· T
    Hinsley, Randall HTNgranted 2019-07-18cancelled 2019-08-06

Successor callsigns

Callsigns held now by people who previously held W4OCO.

  1. W4GMactive· E
    HYMAN, MikeVAgranted 2020-04-21
  2. NC4MHcancelled· E
    HYMAN, ROBERT MNCgranted 2008-02-01cancelled 2008-03-11

All historical holders

Every license row we've seen with the callsign W4OCO, oldest first.

  • HYMAN, ROBERT M NC
    1998-10-29 → cancelled 2008-02-01
  • HYMAN, Mike VA
    2017-12-14 → cancelled 2020-04-21
← Back to W4OCO License history →