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

WU0A callsign genealogy

Currently held by ZEIHER, DAVID B

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 WU0A's current licensee, walking backwards.

  1. AC0VZcancelled· E
    LAYMAN, JOHN HCOgranted 2005-09-15cancelled 2011-08-26
  2. WB0YRMcancelled· E
    LAYMAN, JOHN HCOgranted 2005-09-15cancelled 2011-04-25

Successor callsigns

Callsigns held now by people who previously held WU0A.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WU0A, oldest first.

  • ZEIHER, DAVID B CA
    1997-04-10 → cancelled 2009-04-11
  • LAYMAN, JOHN H CO
    2021-06-30 active
← Back to WU0A License history →