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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

K9JS callsign genealogy

Currently held by SCHULZ, JONATHAN L

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 K9JS's current licensee, walking backwards.

  1. K9JLSactive· G
    SMITH, JAMES BUTgranted 2020-10-14
  2. KD0MXHcancelled· T
    Smith, James BMOgranted 2010-10-29cancelled 2010-11-23

Successor callsigns

Callsigns held now by people who previously held K9JS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K9JS, oldest first.

  • SMITH, JAMES V IN
    1990-10-16 → cancelled 2002-10-17
  • SCHULZ, JONATHAN L IL
    2024-02-07 active
← Back to K9JS License history →