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

N9THC callsign genealogy

Currently held by ANDREN, RICHARD M

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 N9THC's current licensee, walking backwards.

  1. N3THCcancelled· G
    Di Giulio, MarcoILgranted 2023-01-31cancelled 2023-10-24
  2. KD9VQPcancelled· G
    Di Giulio, MarcoILgranted 2022-08-23cancelled 2023-01-31

Successor callsigns

Callsigns held now by people who previously held N9THC.

  1. N9DROactive· G
    Di Giulio, Marco AILgranted 2026-08-11
  2. AE9Dactive· E
    ANDREN, RICHARD MILgranted 2019-03-06

All historical holders

Every license row we've seen with the callsign N9THC, oldest first.

  • Di Giulio, Marco A IL
    2023-10-24 → cancelled 2026-08-11
  • ANDREN, RICHARD M
    — → cancelled 1999-05-05
← Back to N9THC License history →