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

N6DUU callsign genealogy

Currently held by Holliday, Michael 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 N6DUU's current licensee, walking backwards.

The current licensee has not held any other callsign on record.

Successor callsigns

Callsigns held now by people who previously held N6DUU.

  1. K7MBHexpired· G
    Holliday, Michael BAZgranted 2001-10-30cancelled 2013-11-05