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

W4LEO callsign genealogy

Currently held by NENTWIG JR, LEO 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 W4LEO's current licensee, walking backwards.

  1. N2BLactive· E
    Gier, Isaac CNEgranted 2021-10-30
  2. KA0BOYcancelled· E
    Gier, Isaac CNEgranted 2020-09-29cancelled 2021-10-30
  3. KF0AQYcancelled· T
    Gier, Isaac CNEgranted 2020-06-23cancelled 2020-09-29

Successor callsigns

Callsigns held now by people who previously held W4LEO.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W4LEO, oldest first.

  • NENTWIG JR, LEO L FL
    2007-09-27 → cancelled 2019-09-18
  • Breuss, Leo CA
    2019-10-08 active
← Back to W4LEO License history →