uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KN4D callsign genealogy

Currently held by JAY, RONALD C

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 KN4D's current licensee, walking backwards.

  1. AB6HIcancelled· E
    JAY, RONALD CFLgranted 2014-02-01cancelled 2016-07-29
  2. WH6Oactive· E
    Kerns, Samuel TFLgranted 2025-12-03
  3. WH6EZLcancelled· E
    Kerns, Samuel THIgranted 2015-10-27cancelled 2016-02-20

Successor callsigns

Callsigns held now by people who previously held KN4D.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KN4D, oldest first.

  • SISSON, MAX E SC
    2004-04-19 → cancelled 2016-07-12
  • JAY, RONALD C FL
    2016-07-29 active
← Back to KN4D License history →