uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N4WO callsign genealogy

Currently held by O HEIR, WALTER C

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 N4WO's current licensee, walking backwards.

  1. N1BOactive· E
    Mc Kinnon Jr, James FNHgranted 2017-01-10
  2. AB1GPcancelled· E
    Mc Kinnon Jr, James FNHgranted 2002-03-15cancelled 2007-02-17
  3. KA1AHEcancelled· E
    Mc Kinnon Jr, James FNHgranted 2002-03-15cancelled 2007-01-29

Successor callsigns

Callsigns held now by people who previously held N4WO.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N4WO, oldest first.

  • O HEIR, WALTER C FL
    1996-10-07 → cancelled 2002-10-03
  • McCraw, Gregory D FL
    2024-10-31 active
← Back to N4WO License history →