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

K7OI callsign genealogy

Currently held by Permenter, Terry 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 K7OI's current licensee, walking backwards.

  1. KA9KPLcancelled· E
    LOILER, MARK VAZgranted 2017-10-24cancelled 2018-11-24
  2. KA7KPLcancelled· G
    Loiler, Mark VORgranted 2000-03-24cancelled 2008-01-15
  3. KC6PTAcancelled· P
    LOILER, MARK VCAgranted 1991-04-02cancelled 2000-03-24

Successor callsigns

Callsigns held now by people who previously held K7OI.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K7OI, oldest first.

  • Permenter, Terry O WA
    2006-09-13 → cancelled 2018-11-06
  • LOILER, MARK V AZ
    2018-11-24 active
← Back to K7OI License history →