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

KH6POI callsign genealogy

Currently held by SWARTZ, WILLIAM V

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 KH6POI's current licensee, walking backwards.

  1. KK6VYFcancelled· T
    Lee, TravisHIgranted 2026-02-27cancelled 2026-03-17

Successor callsigns

Callsigns held now by people who previously held KH6POI.

  1. WB4YQSactive· G
    SWARTZ, WILLIAM VFLgranted 2017-06-06
  2. WB4YQScancelled· G
    SWARTZ, WILLIAM VFLgranted 2016-03-01cancelled 2017-01-04

All historical holders

Every license row we've seen with the callsign KH6POI, oldest first.

  • SWARTZ, WILLIAM V FL
    2006-04-04 → cancelled 2016-03-01
  • SWARTZ, WILLIAM V FL
    2017-01-04 → cancelled 2017-06-06
  • Lee, Travis HI
    2026-03-17 active