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

K6ZIP callsign genealogy

Currently held by Brannigan, John P

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 K6ZIP's current licensee, walking backwards.

  1. KC7ZIPcancelled· T
    Brannigan, John PORgranted 2017-08-15cancelled 2019-04-02

Successor callsigns

Callsigns held now by people who previously held K6ZIP.

  1. K3ZIPactive· G
    Brannigan, JohnORgranted 2020-09-29
  2. KC7ZIPcancelled· T
    Brannigan, John PORgranted 2017-08-15cancelled 2019-04-02
  3. K7ZIPcancelled· G
    KARPENSKE, DAVID SWAgranted 2013-05-24cancelled 2020-02-01

All historical holders

Every license row we've seen with the callsign K6ZIP, oldest first.

  • KARPENSKE, DAVID S WA
    1998-01-22 → cancelled 2003-08-12
  • Brannigan, John P OR
    2014-08-22 → cancelled 2017-08-15
  • Brannigan, John OR
    2019-04-02 → cancelled 2020-09-29
← Back to K6ZIP License history →