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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

WZ4I callsign genealogy

Currently held by HEICHER, CHESTER K

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 WZ4I's current licensee, walking backwards.

  1. WX4AXcancelled· E
    HEWELL, BRADLEY LGAgranted 2020-09-09cancelled 2021-03-09
  2. KJ4CFcancelled· E
    HEWELL, BRADLEY LGAgranted 2020-08-18cancelled 2020-09-09
  3. KY4ACactive· E
    Munafo, Michael JKYgranted 2025-03-18
  4. KQ4NEOcancelled· E
    Munafo, Michael JKYgranted 2023-12-15cancelled 2025-03-18

Successor callsigns

Callsigns held now by people who previously held WZ4I.

  1. WW4DXactive· E
    Harrison, MarkNCgranted 2019-02-16

All historical holders

Every license row we've seen with the callsign WZ4I, oldest first.

  • HEICHER, CHESTER K FL
    1994-01-04 → cancelled 2006-01-05
  • Harrison, Mark NC
    2015-12-08 → cancelled 2019-02-16
  • HEWELL, BRADLEY L GA
    2021-03-09 active
← Back to WZ4I License history →