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

KI7ABL callsign genealogy

Currently held by HOWELL, BYRON O

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 KI7ABL's current licensee, walking backwards.

  1. KI7HKGcancelled· G
    HOWELL, BYRON OWAgranted 2011-11-23cancelled 2018-02-06
  2. KD0QDQcancelled· T
    HOWELL, BYRON OWAgranted 2011-11-23cancelled 2016-10-04

Successor callsigns

Callsigns held now by people who previously held KI7ABL.

  1. K7MZWactive· T
    Zielaskowski, Michael PORgranted 2016-01-16

All historical holders

Every license row we've seen with the callsign KI7ABL, oldest first.

  • Zielaskowski, Michael P OR
    2015-12-23 → cancelled 2016-01-16
  • HOWELL, BYRON O WA
    2018-02-06 active
← Back to KI7ABL License history →