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

W4ZWO callsign genealogy

Currently held by DIGNEY, CHARLES A

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 W4ZWO's current licensee, walking backwards.

  1. KV4YEcancelled· E
    COLLINS JR, WILLIAM LNCgranted 2013-05-20cancelled 2014-07-04
  2. KK4RHLcancelled· E
    COLLINS JR, WILLIAM LNCgranted 2013-05-20cancelled 2014-05-19

Successor callsigns

Callsigns held now by people who previously held W4ZWO.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W4ZWO, oldest first.

  • DIGNEY, CHARLES A VA
    1996-07-30 → cancelled 2008-07-31
  • COLLINS JR, WILLIAM L NC
    2024-06-28 active
← Back to W4ZWO License history →