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

K5CJ callsign genealogy

Currently held by ROBERTS, THOMAS 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 K5CJ's current licensee, walking backwards.

  1. AK5Ractive· E
    Quillin, Gregory FARgranted 2019-04-09
  2. KG5JNScancelled· E
    Quillin, Gregory FARgranted 2015-10-01cancelled 2019-04-09

Successor callsigns

Callsigns held now by people who previously held K5CJ.

  1. AK5Rcancelled· E
    HARRISON, JOSEPH DTXgranted 2016-02-13cancelled 2017-03-20

All historical holders

Every license row we've seen with the callsign K5CJ, oldest first.

  • ROBERTS, THOMAS J FL
    1987-12-22 → cancelled 1999-12-23
  • HARRISON, JOSEPH D TX
    2009-10-28 → cancelled 2016-02-13
  • HARRISON, JOSEPH D TX
    2017-03-20 active
← Back to K5CJ License history →