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

NB7X callsign genealogy

Currently held by Rubenstein, Abraham E

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 NB7X's current licensee, walking backwards.

  1. K7ABEactive· G
    Mitchell, Raymond ATXgranted 2017-05-09
  2. KE7MTCcancelled· G
    Mitchell, Raymond AORgranted 2007-03-21cancelled 2007-05-25
  3. KE7LWDcancelled· G
    Mitchell, Raymond AORgranted 2007-03-21cancelled 2007-04-18

Successor callsigns

Callsigns held now by people who previously held NB7X.

  1. AA7XOcancelled· E
    MANN, DAVID JCAgranted 2003-05-02cancelled 2003-05-30