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

NY7H callsign genealogy

Currently held by Xiao, Tianhao

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 NY7H's current licensee, walking backwards.

  1. KO4EJDcancelled· E
    CROWLEY, DARIN MAZgranted 2020-06-17cancelled 2022-05-06

Successor callsigns

Callsigns held now by people who previously held NY7H.

  1. N7XIactive· E
    Xiao, Maia HVTgranted 2020-04-14
  2. W6ZUcancelled· E
    Xiao, TianhaoWAgranted 2019-02-01cancelled 2019-06-18

All historical holders

Every license row we've seen with the callsign NY7H, oldest first.

  • SWENDSON, ERIC D AZ
    2006-07-27 → cancelled 2018-08-07
  • Xiao, Tianhao WA
    2018-08-24 → cancelled 2019-02-01
  • Xiao, Tianhao WA
    2019-06-18 → cancelled 2020-04-14
  • CROWLEY, DARIN M AZ
    2022-05-06 active
← Back to NY7H License history →