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

KO1A callsign genealogy

Currently held by GIBSON, GARY L

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 KO1A's current licensee, walking backwards.

  1. KO2Yactive· E
    APSHANKAR, KAPIL STXgranted 2023-08-01
  2. KA3IAMcancelled· E
    APSHANKAR, KAPIL STXgranted 2023-07-11cancelled 2023-08-01
  3. KJ5BIXcancelled· E
    APSHANKAR, KAPIL STXgranted 2023-06-06cancelled 2023-07-11

Successor callsigns

Callsigns held now by people who previously held KO1A.

  1. K1KEactive· E
    Ferreira, James PNHgranted 2019-06-08

All historical holders

Every license row we've seen with the callsign KO1A, oldest first.

  • GIBSON, GARY L CT
    2007-01-05 → cancelled 2019-03-06
  • Ferreira, James P NH
    2019-03-26 → cancelled 2019-06-08
  • Marzilli, Matteo Maria FL
    2021-06-29 active
← Back to KO1A License history →