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

N6BDF callsign genealogy

Currently held by CHANG, ANDREW S

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 N6BDF's current licensee, walking backwards.

  1. N6YUKcancelled· G
    CHANG, ANDREW SCAgranted 2013-11-16cancelled 2015-01-21

Successor callsigns

Callsigns held now by people who previously held N6BDF.

  1. AD6Jactive· E
    CHANG, ANDREW SCAgranted 2018-12-01
  2. N6YUKcancelled· G
    CHANG, ANDREW SCAgranted 2013-11-16cancelled 2015-01-21

All historical holders

Every license row we've seen with the callsign N6BDF, oldest first.

  • CHANG, ANDREW S CA
    2011-07-13 → cancelled 2013-11-16
  • CHANG, ANDREW S CA
    2015-01-21 → cancelled 2018-12-01
← Back to N6BDF License history →