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

N7TWD callsign genealogy

Currently held by MAZZA, CONRAD C

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 N7TWD's current licensee, walking backwards.

  1. K5TWDcancelled· G
    Denny, Timothy WORgranted 2021-04-20cancelled 2021-08-31
  2. KJ7WOJcancelled· G
    Denny, Timothy WORgranted 2021-04-02cancelled 2021-04-20

Successor callsigns

Callsigns held now by people who previously held N7TWD.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N7TWD, oldest first.

  • MAZZA, CONRAD C AZ
    1991-09-03 → cancelled 2003-09-04
  • Denny, Timothy W OR
    2021-08-31 active
← Back to N7TWD License history →