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

AI7D callsign genealogy

Currently held by Heckenlaible, Jon M

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 AI7D's current licensee, walking backwards.

  1. KK7MHcancelled· E
    Heckenlaible, Jon MMTgranted 2024-11-22cancelled 2024-12-17
  2. W7NETcancelled· E
    Heckenlaible, Jon MMTgranted 2024-07-02cancelled 2024-11-22
  3. K6JMHcancelled· G
    HECKENLAIBLE, JON MMTgranted 2019-04-30cancelled 2024-07-02
  4. N6LDEcancelled· P
    HECKENLAIBLE, JON Mcancelled 1999-07-27

Successor callsigns

Callsigns held now by people who previously held AI7D.

  1. W7HSactive· E
    Heckenlaible, Jon MMTgranted 2026-04-14

All historical holders

Every license row we've seen with the callsign AI7D, oldest first.

  • PORTER, JEFFREY F UT
    2012-08-21 → cancelled 2024-12-04
  • Heckenlaible, Jon M MT
    2024-12-17 → cancelled 2026-04-14
← Back to AI7D License history →