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

N1ENV callsign genealogy

Currently held by Kuwana, Yuri

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 N1ENV's current licensee, walking backwards.

  1. AF6WYcancelled· E
    Kuwana, YuriCAgranted 2010-03-12cancelled 2010-08-17
  2. KJ6GBKcancelled· E
    Kuwana, YuriCAgranted 2010-03-12cancelled 2010-05-11

Successor callsigns

Callsigns held now by people who previously held N1ENV.

  1. AA1XPactive· E
    Buslewicz, MarkCTgranted 2019-05-03

All historical holders

Every license row we've seen with the callsign N1ENV, oldest first.

  • Buslewicz, Mark CT
    1999-05-21 → cancelled 2001-02-08
  • Kuwana, Yuri CA
    2020-05-20 active
← Back to N1ENV License history →