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

KJ4USA callsign genealogy

Currently held by Carney, Charles G

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 KJ4USA's current licensee, walking backwards.

  1. KM4NEBcancelled· G
    Fox, Eric JTNgranted 2015-09-11cancelled 2015-10-23

Successor callsigns

Callsigns held now by people who previously held KJ4USA.

  1. AG5CCcancelled· E
    Carney, Charles GMSgranted 2013-03-26cancelled 2018-07-29
  2. KW5USAcancelled· G
    Carney, Charles GMSgranted 2012-06-19cancelled 2012-11-16

All historical holders

Every license row we've seen with the callsign KJ4USA, oldest first.

  • Carney, Charles G MS
    2010-04-09 → cancelled 2012-06-19
  • Carney, Charles G MS
    2012-11-16 → cancelled 2013-03-26
  • Fox 571, Eric J TN
    2015-10-23 active
← Back to KJ4USA License history →