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

K5IV callsign genealogy

Currently held by Johnson, Steven E

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 K5IV's current licensee, walking backwards.

  1. NW3Lactive· E
    SWEENEY, DAVIDMDgranted 2024-04-23
  2. W3MAMcancelled· E
    SWEENEY, DAVIDMDgranted 2019-07-26cancelled 2024-04-23
  3. KC3NSVcancelled· T
    SWEENEY, DAVIDMDgranted 2019-07-08cancelled 2019-07-26

Successor callsigns

Callsigns held now by people who previously held K5IV.

  1. K5AAAcancelled· E
    MATHIS II, JAMES LTXgranted 2020-02-11cancelled 2020-06-23

All historical holders

Every license row we've seen with the callsign K5IV, oldest first.

  • MATHIS II, JAMES L TX
    2016-01-01 → cancelled 2020-02-11
  • Johnson, Steven E OK
    2022-03-04 active
← Back to K5IV License history →