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

K4YS callsign genealogy

Currently held by FORSYTH, RUSSELL K

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 K4YS's current licensee, walking backwards.

  1. K6JCGcancelled· E
    Green, Jonathan CVAgranted 2011-03-12cancelled 2017-08-22
  2. KJ6MQGcancelled· G
    Green, Jonathan CCAgranted 2011-02-14cancelled 2011-03-12

Successor callsigns

Callsigns held now by people who previously held K4YS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K4YS, oldest first.

  • FORSYTH, RUSSELL K NC
    1989-01-17 → cancelled 2001-01-18
  • GREEN, JOHN M NC
    2010-12-04 → cancelled 2016-12-05
  • Green, Jonathan C VA
    2017-08-22 active
← Back to K4YS License history →