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

AD1AD callsign genealogy

Currently held by BROOKS, JAMES A

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 AD1AD's current licensee, walking backwards.

  1. AE0ABcancelled· E
    Thakur, AdityaCAgranted 2017-11-15cancelled 2022-11-08

Successor callsigns

Callsigns held now by people who previously held AD1AD.

  1. KM1Bactive· E
    An, Chiyoon CMAgranted 2020-06-09
  2. N1YCactive· E
    BROOKS, JAMES AMAgranted 2018-10-03

All historical holders

Every license row we've seen with the callsign AD1AD, oldest first.

  • An, Chiyoon C MA
    2011-06-14 → cancelled 2020-06-09
  • Thakur, Aditya CA
    2022-11-08 active
  • BROOKS, JAMES A
    — → cancelled 1998-12-31
← Back to AD1AD License history →