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

K4OSC callsign genealogy

Currently held by Osceola Amateur Radio Emergency Services

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 K4OSC's current licensee, walking backwards.

  1. KG4VZNcancelled
    Osceola Amateur Radio Emergency ServicesFLgranted 2002-11-15cancelled 2003-03-08

Successor callsigns

Callsigns held now by people who previously held K4OSC.

  1. K1XCactive
    Radio Science Education Group of OrlandoFLgranted 2020-09-16

All historical holders

Every license row we've seen with the callsign K4OSC, oldest first.

  • Radio Science Education Group of Orlando FL
    1997-03-27 → cancelled 2000-11-21
  • Osceola Amateur Radio Emergency Services FL
    2003-03-08 → cancelled 2015-03-10
← Back to K4OSC License history →