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

K4ST callsign genealogy

Currently held by ENDO, KIYOSHI

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 K4ST's current licensee, walking backwards.

  1. W3XJactive· E
    Jones Jr, William RMDgranted 2021-04-20
  2. N3EGOcancelled· E
    Jones Jr, William RMDgranted 1995-03-08cancelled 2001-05-01

Successor callsigns

Callsigns held now by people who previously held K4ST.

No current licensee on record previously held this callsign.

← Back to K4ST License history →