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

W4DOS callsign genealogy

Currently held by BONHAM, CLARENCE G

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 W4DOS's current licensee, walking backwards.

  1. KN4QXUcancelled· G
    VELDERRAMA, ANTHONYGAgranted 2018-09-27cancelled 2018-12-28
  2. KN4PHBcancelled· G
    VELDERRAMA, ANTHONYGAgranted 2018-09-27cancelled 2018-11-27

Successor callsigns

Callsigns held now by people who previously held W4DOS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W4DOS, oldest first.

  • BONHAM, CLARENCE G FL
    2007-02-22 → cancelled 2018-12-05
  • VALDERRAMA, ANTHONY GA
    2018-12-28 active
← Back to W4DOS License history →