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

AD7ZM callsign genealogy

Currently held by WATERS, MARK

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 AD7ZM's current licensee, walking backwards.

  1. N7EYQcancelled· E
    WATERS, MARKAZgranted 2009-01-24cancelled 2009-04-14
  2. KB5YBTcancelled
    cancelled 1999-01-07

Successor callsigns

Callsigns held now by people who previously held AD7ZM.

  1. W2WYactive· E
    WATERS, MARKAZgranted 2019-02-05
← Back to AD7ZM License history →