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

N9AAK callsign genealogy

Currently held by Schwartz, Matthew 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 N9AAK's current licensee, walking backwards.

  1. KF7SVXcancelled· E
    Schwartz, Matthew EPAgranted 2011-11-30cancelled 2018-06-19

Successor callsigns

Callsigns held now by people who previously held N9AAK.

  1. WK1Tactive· E
    Schwartz, Matthew EDEgranted 2018-11-14

All historical holders

Every license row we've seen with the callsign N9AAK, oldest first.

  • STRZYZEWSKI, EUGENE J WI
    1997-04-25 → cancelled 2009-04-28
  • Schwartz, Matthew E DE
    2018-06-19 → cancelled 2018-11-14