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

K0SPY callsign genealogy

Currently held by BASLER, GEORGE

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 K0SPY's current licensee, walking backwards.

  1. KR4IUScancelled· T
    Basler, GeorgeFLgranted 2026-01-10cancelled 2026-02-18

Successor callsigns

Callsigns held now by people who previously held K0SPY.

  1. N0JJWactive· E
    WILBER, JOHN JFLgranted 2021-02-09
  2. K0ISPcancelled· T
    JACKSON, JOECOgranted 2012-03-16cancelled 2014-08-01

All historical holders

Every license row we've seen with the callsign K0SPY, oldest first.

  • JACKSON, JOE CA
    2003-02-25 → cancelled 2012-03-16
  • WILBER, JOHN J CO
    2014-04-04 → cancelled 2021-02-09
  • BASLER, GEORGE FL
    2026-02-18 active
← Back to K0SPY License history →