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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K1JK callsign genealogy

Currently held by KANTER, JONATHAN J

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 K1JK's current licensee, walking backwards.

  1. K1JGKactive· G
    Kaiser III, Joseph GFLgranted 2024-12-10
  2. KC1VRNcancelled· G
    Kaiser III, Joseph GRIgranted 2024-11-15cancelled 2024-12-10

Successor callsigns

Callsigns held now by people who previously held K1JK.

  1. AF1Mcancelled· E
    KANTER, JON JNVgranted 2018-01-05cancelled 2024-05-14

All historical holders

Every license row we've seen with the callsign K1JK, oldest first.

  • KRASS, JOHN G ME
    1993-10-26 → cancelled 2005-10-27
  • KANTER, JONATHAN J MA
    2006-01-10 → cancelled 2008-02-29
  • Kellogg, Jeffrey G MA
    2020-01-07 active
← Back to K1JK License history →