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

KA1ZFY callsign genealogy

Currently held by Eisenberg, Steven R

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 KA1ZFY's current licensee, walking backwards.

  1. K1ZFYcancelled· G
    Eisenberg, SteveMEgranted 2019-03-05cancelled 2019-04-09

Successor callsigns

Callsigns held now by people who previously held KA1ZFY.

  1. K1ZFYcancelled· G
    Eisenberg, SteveMEgranted 2019-03-05cancelled 2019-04-09
  2. N1KIXcancelled· T
    EISENBERG, STEVEN RNHgranted 2001-07-18cancelled 2005-02-12

All historical holders

Every license row we've seen with the callsign KA1ZFY, oldest first.

  • Eisenberg, Steven R ME
    2018-03-15 → cancelled 2019-03-05
  • Eisenberg, Steven R ME
    2019-04-09 active
← Back to KA1ZFY License history →