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

KK6UDX callsign genealogy

Currently held by FENTRESS, ROBERT B

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 KK6UDX's current licensee, walking backwards.

The current licensee has not held any other callsign on record.

Successor callsigns

Callsigns held now by people who previously held KK6UDX.

  1. W6RBFactive· E
    FENTRESS, ROBERT BCAgranted 2025-09-05