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

KK6ABC callsign genealogy

Currently held by Schaack, Joe A

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 KK6ABC's current licensee, walking backwards.

  1. KK6PHDcancelled· T
    HSU, ALLEN JCAgranted 2022-01-28cancelled 2023-01-21
  2. KN6SBNcancelled· T
    HSU, ALLEN JCAgranted 2021-12-09cancelled 2022-01-28

Successor callsigns

Callsigns held now by people who previously held KK6ABC.

  1. KK6WVWexpired· T
    Schaack, Joe ACAgranted 2012-11-10cancelled 2024-12-04

All historical holders

Every license row we've seen with the callsign KK6ABC, oldest first.

  • Schaack, Joe A CA
    2012-10-12 → cancelled 2012-11-10
  • HSU, ALLEN J CA
    2023-01-21 active
← Back to KK6ABC License history →