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

KA1KA callsign genealogy

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 KA1KA's current licensee, walking backwards.

  1. WA1ASactive· E
    Frugia, Marcus TMAgranted 2018-12-11
  2. K7FRUactive· G
    FRUGIA, GUY MORgranted 2025-04-15
  3. KK7ZOIcancelled· T
    FRUGIA, GUY MORgranted 2025-03-08cancelled 2025-04-15

Successor callsigns

Callsigns held now by people who previously held KA1KA.

  1. WW1XXcancelled· A
    SHAPIRO, ADAM DCAgranted 2021-12-28cancelled 2023-07-25
  2. KU1Kexpired· E
    POLOWY, WILLIAM MCTgranted 2003-03-12cancelled 2015-06-09
  3. KA1KKexpired· A
    BUTCHER, JAMES GMAgranted 1999-03-11cancelled 2011-03-12

All historical holders

Every license row we've seen with the callsign KA1KA, oldest first.

  • SHAPIRO, ADAM D MA
    2015-04-24 → cancelled 2021-12-28
  • —
    — → cancelled 1999-03-11
← Back to KA1KA License history →