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

AI9I callsign genealogy

Currently held by Simpson, Dan

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 AI9I's current licensee, walking backwards.

  1. KB9PTWcancelled· E
    Alvarez Jr, James EILgranted 2018-03-21cancelled 2020-12-11
  2. KD9JTCcancelled· T
    Alvarez Jr, James EILgranted 2017-11-22cancelled 2018-03-21

Successor callsigns

Callsigns held now by people who previously held AI9I.

  1. W8RZactive· E
    Simpson, DanMIgranted 2018-11-20

All historical holders

Every license row we've seen with the callsign AI9I, oldest first.

  • RUDOLPH, RONALD J PA
    1993-10-19 → cancelled 2005-10-20
  • Simpson, Dan IL
    2016-01-20 → cancelled 2018-11-20
  • Alvarez Jr, James E IL
    2020-12-11 active
← Back to AI9I License history →