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

KD9ENV callsign genealogy

Currently held by COOK, CHRISTOPHER R

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 KD9ENV's current licensee, walking backwards.

  1. KD9TGDcancelled· G
    COOK, CHRISTOPHER RINgranted 2021-08-10cancelled 2021-08-31

Successor callsigns

Callsigns held now by people who previously held KD9ENV.

  1. W9KHPactive· G
    Edge, Raymond BINgranted 2025-09-04
  2. N9JVactive· E
    COOK, CHRISTOPHER RINgranted 2023-01-10

All historical holders

Every license row we've seen with the callsign KD9ENV, oldest first.

  • Edge, Raymond B IN
    2015-09-10 → cancelled 2015-10-03
  • COOK, CHRISTOPHER R IN
    2021-08-31 → cancelled 2023-01-10
← Back to KD9ENV License history →