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

W4AD callsign genealogy

Currently held by O MARA, JOHN F

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 W4AD's current licensee, walking backwards.

  1. WM4RMcancelled
    WOODBRIDGE WIRELESS INCVAgranted 2002-10-18cancelled 2011-06-03
  2. KG4ILZcancelled
    WOODBRIDGE WIRELESS INCVAgranted 2000-06-29cancelled 2002-10-18

Successor callsigns

Callsigns held now by people who previously held W4AD.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W4AD, oldest first.

  • O MARA, JOHN F VA
    2006-09-22 → cancelled 2009-10-17
  • WOODBRIDGE WIRELESS INC VA
    2021-03-12 active
← Back to W4AD License history →