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

K6VFO callsign genealogy

Currently held by Delzer, Curtis L

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 K6VFO's current licensee, walking backwards.

  1. WB6HEFcancelled· E
    DELZER, CURTIS LCAgranted 2017-03-25cancelled 2019-05-17

Successor callsigns

Callsigns held now by people who previously held K6VFO.

  1. WB6HEFcancelled· E
    DELZER, CURTIS LCAgranted 2017-03-25cancelled 2019-05-17

All historical holders

Every license row we've seen with the callsign K6VFO, oldest first.

  • SHARE, STEVEN A CA
    2000-07-28 → cancelled 2012-07-31
  • DELZER, CURTIS L CA
    2012-08-28 → cancelled 2017-03-25
  • Delzer, Curtis L CA
    2019-05-17 active