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

KI0SY callsign genealogy

Currently held by EARHART, GORDON N

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 KI0SY's current licensee, walking backwards.

  1. KM5YRcancelled· A
    EARHART, GORDON NKSgranted 2005-07-27cancelled 2007-10-10
  2. KV4BHcancelled· A
    EARHART, GORDON NNMgranted 2005-07-27cancelled 2006-06-27
  3. KG4AWJcancelled· A
    EARHART, GORDON Ncancelled 1999-07-18

Successor callsigns

Callsigns held now by people who previously held KI0SY.

  1. AD0SHactive· E
    EARHART, GORDON NKSgranted 2025-09-11
← Back to KI0SY License history →