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

WW1WWW callsign genealogy

Currently held by HILDEBRAND, KRISZTIAN 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 WW1WWW's current licensee, walking backwards.

  1. KJ4UMIcancelled· G
    HILDEBRAND, KRISZTIAN RFLgranted 2010-04-23cancelled 2010-05-15

Successor callsigns

Callsigns held now by people who previously held WW1WWW.

No current licensee on record previously held this callsign.